Hello there!
I've been struggling with this bug 2 days from now on ,and I can't seem to find any help online.
TL;DR
Heavily modded Oldrim save works perfectly fine on modded SSE, but crashes when trying to save.
Long descryption
Recently I have finally decided to move my heavily modded Oldrim save into SE. I have downloaded as many equivalent SE mods as possible and checked whether they all worked together with a separate character. I prepared a separate savefile set outside of modded spaces, cleaned it with Save game script cleaner and thrown it into SSE save folder. Then started Skyrim, and everything seemingly worked. Of course some stuff like Apocalypse Spells didn't transfer over ,but most stuff stayed in place and looked fine and dandy. That is until I have attempted to save the game so that transfer is finished. Game promptly crashed me to the desktop. Did any of you encounter something similar? Should I perhaps make a Oldrim save with unnecessary mods uninstalled? Am I retarded and should play vanilla for the rest of my life?
Technical checklist:
Oldrim Version: Latest Legendary Edition with SKSE 1.7.3|1.9.32.0|48 (Not sure if version is written correctly)
SSE Version: Latest without SKSE64
PC Stats: NVidia GTX 970, Intel Core i7-4790K CPU @ 4GHZ, 8GB RAM
NMM: Yes
Any other Skyrim tools: Save game script cleaner, LOOT, TESVEdit and Bash (latter two only used in Oldrim)
Side by side comparison of load orders
Skyrim Special Edition
0 0 Skyrim.esm
1 1 Update.esm
2 2 Dawnguard.esm
3 3 HearthFires.esm
4 4 Dragonborn.esm
5 5 Unofficial Skyrim Special Edition Patch.esp
6 6 ApachiiHairFemales.esm
7 7 ApachiiHairMales.esm
8 8 ApachiiHair.esm
9 9 Lanterns Of Skyrim - All In One - Main.esm
10 a ClimatesOfTamriel.esm
11 b EFFCore.esm
12 c Apachii_DivineEleganceStore.esm
13 d SkyrimBordersDisabled.esm
14 e BSAssets.esm
15 f BSHeartland.esm
16 10 BS_DLC_patch.esp
17 11 RSkyrimChildren.esm
18 12 Hothtrooper44_Armor_Ecksstra.esp
19 13 Hothtrooper44_ArmorCompilation.esp
20 14 Predator Vision.esp
21 15 WICO - Immersive Character.esp
22 16 WICO - Immersive People.esp
23 17 WICO - Immersive Dawnguard.esp
24 18 WICO - Wild Hunt Gears.esp
25 19 SMIM-SE-Merged-All.esp
26 1a SitaFollower.esp
27 1b Apocalypse - Magic of Skyrim.esp
28 1c Skyrim Flora Overhaul.esp
29 1d VioLens SE.esp
30 1e VioLens SE - Book Menu.esp
31 1f TrueStormsSE.esp
32 20 Unique Uniques.esp
33 21 Eli_Breezehome.esp
34 22 Run For Your Lives.esp
35 23 BarenziahQuestMarkers.esp
36 24 The Paarthurnax Dilemma.esp
37 25 WetandCold.esp
38 26 RealisticWaterTwo.esp
39 27 RealisticWaterTwo - iNeed.esp
40 28 RealisticWaterTwo - Watercolor.esp
41 29 Dr_Bandolier.esp
42 2a ClimatesOfTamriel-Interiors-Warm.esp
43 2b ClimatesOfTamriel-Nights-L1.esp
44 2c Crossroads Inn.esp
45 2d InnCredible.esp
46 2e Verdant - A Skyrim Grass Plugin SSE Version.esp
47 2f XPMSE.esp
48 30 Dwemer Goggles & Scouter.esp
49 31 Blindfolds_of_Skyrim.esp
50 32 Immersive Music Temples.esp
51 33 Immersive Music.esp
52 34 ShowRaceMenuAlternative.esp
53 35 Laundry.esp
54 36 JKs Whiterun.esp
55 37 JK's Riverwood.esp
56 38 Friendlier Taverns.esp
57 39 ExpandedJewelryCrafting.esp
58 3a Skyrim Better Roads and Bridges - All In One - Merged.esp
59 3b Skyrim Better Roads - The Rift.esp
60 3c FastTravelSpeedMultiplier.esp
61 3d Insanity's Sorrow.esp
62 3e ScytheOfTheCrow.esp
63 3f Alternate Start - Live Another Life.esp
64 40 LevelersTower.esp
65 41 LABikiniSSE.esp
66 42 Bent Pines.esp
67 43 windyridge.esp
68 44 SkyR - Riften Interiors.esp
69 45 SkyR - Riverwood Interiors.esp
70 46 SkyR - Solitude Interiors.esp
71 47 SkyR - Whiterun Interiors.esp
72 48 SkyR - Windhelm Interiors USP patch.esp
73 49 SkyR - Windhelm Interiors.esp
74 4a ZenitharWorkshop.esp
75 4b SarethiManor.esp
76 4c FNIS.esp
77 4d Skullcave Island 2.5.esp
78 4e Rayeks_End_SSE_1.0.esp
79 4f InigoPerkPointGiver.esp
80 50 MKH.esp
81 51 Khajiit_Eyes_Extended.esp
82 52 Keeping Warm.esp
83 53 Apophysis_DPM_SE.esp
84 54 DigitigradeKhajiit+ArgonianRaptor.esp
85 55 PrvtIRoyalArmory.esp
86 56 PrvtI_HeavyArmory.esp
87 57 DreamBurrowsRegalHuntsmanArmor.esp
88 58 DCR_KingCrusaderMegaPack_SSE.esp
89 59 MONSTERaider - Beast Followers.esp
90 5a EFFDialogue.esp
91 5b Uncle Sheo Legendary.esp
92 5c Cliffracers_Solstheim_SSE.esp
93 5d Apachii_DivineEleganceStore_Patch.esp
94 5e RedoranGrove.esp
95 5f Carpathian Inn.esp
96 60 OpulentThievesGuild.esp
97 61 SeaPointSettlement.esp
98 62 CW-HouseOfTroubles.esp
99 63 mihailsuthaypahmaralliancecamp.esp
100 64 Redoran's Retreat.esp
101 65 Silent Moons Camp Reborn.esp
102 66 TacticalValtheim.esp
103 67 Summermyst - Enchantments of Skyrim.esp
104 68 Skyrim Better Roads - EastMarch.esp
105 69 Skyrim Better Roads - Winterhold.esp
106 6a Relationship Dialogue Overhaul.esp
107 6b fallentreebridges.esp
108 6c Hotsprings of Skyrim.esp
109 6d sandboxcylinderheight.esp
110 6e Inigo.esp
111 6f MrissiTailOfTroubles.esp
112 70 My Home Is Your Home.esp
113 71 AKSkyrimUnderground.esp
114 72 BlanketScarf.esp
115 73 FaceMasksOfSkyrim.esp
116 74 AngasMillReborn.esp
117 75 Tel Mithryn.esp
118 76 Blues Skyrim.esp
119 77 VikingShipPlayerHome.esp
120 78 ShezrieOldHroldanVer2.esp
121 79 Solitude Expansion.esp
122 7a T'Skyrim Riverwood.esp
123 7b Winterhold.esp
124 7c Whitewatch Tower.esp
125 7d Improved Eyes Skyrim.esp
126 7e Improved Eyes Skyrim - Vamp.esp
127 7f Improved Eyes Skyrim - Serana.esp
128 80 Fantasy Soundtrack Project.esp
129 81 Fantasy Soundtrack Project - Combat.esp
130 82 SoundsofSkyrimComplete.esp
131 83 SoS_CoT_Patch.esp
132 84 SoS_TrueStorms_Patch.esp
133 85 SideDragonPriestMasks.esp
134 86 Osare Culort Outfit.esp
135 87 RM Light Elven Armor.esp
136 88 imp_helm_legend.esp
137 89 mihaildwarvenpowerarmor.esp
138 8a FloraRespawnFix.esp
139 8b BSHeartlandFRF.esp
140 8c RSChildren Patch - BS Bruma.esp
141 8d RSChildren.esp
142 8e __00GrandBathHouse2.esp
143 8f mihailmudcrabmerchant.esp
144 90 IcePenguinWorldMapPaper.esp
145 91 Lore Weapon Expansion - Daedric Crescent.esp
146 92 Lore Weapon Expansion - Goldbrand.esp
147 93 Lore Weapon Expansion - Relics of the Crusader.esp
148 94 Lore Weapon Expansion.esp
Oldrim
0 0 Skyrim.esm
1 1 Update.esm
2 2 Dawnguard.esm
3 3 HearthFires.esm
4 4 Dragonborn.esm
5 5 Unofficial Skyrim Legendary Edition Patch.esp
6 6 Skyrim Project Optimization - Full Version.esm
7 7 ApachiiHairFemales.esm
8 8 ApachiiHairMales.esm
9 9 RSkyrimChildren.esm
10 a ApachiiHair.esm
11 b EFFCore.esm
12 c SkyrimBordersDisabled.esm
13 d RaceCompatibility.esm
14 e hdtHighHeel.esm
15 f GeneralDisplays.esm
16 10 GeneralDisplays - DB.esm
17 11 GeneralDisplays - DG.esm
18 12 Campfire.esm
19 13 ClimatesOfTamriel.esm
20 14 Apachii_DivineEleganceStore.esm
21 15 moonpath.esm
22 16 GeneralStores.esm
23 17 BSAssets.esm
24 18 BSHeartland.esm
25 19 SkyUI.esp
26 1a Brawl Bugs CE.esp
27 1b ShowRaceMenuAlternative.esp
28 1c FNIS.esp
29 1d Bathing in Skyrim - Main.esp
30 1e dD - Realistic Ragdoll Force - Realistic.esp
31 1f Dr_BandolierDG.esp
32 20 Paarthurnax_Bypass.esp
33 21 ClimatesOfTamriel-Interiors-Warm.esp
34 22 ClimatesOfTamriel-Nights-Level-1.esp
35 23 ClimatesOfTamriel-Dawnguard-Patch.esp
36 24 WetandCold.esp
37 25 WetandCold - Ashes.esp
38 26 ClimatesOfTamriel-Dragonborn-Patch.esp
39 27 SkyRealism - Time and Travel.esp
40 28 DeviantKaled's Nord Ship Replacers.esp
41 29 SKYR Interiors - Riften.esp
42 2a LegacyoftheDragonborn.esp
43 2b imp_helm_legend.esp
44 2c CollegeOfWinterholdImmersive.esp
45 2d DBM_UnofficialFix_Patch.esp
46 2e SkyR - Windhelm Interiors.esp
47 2f JKs Skyrim.esp
48 30 ThengilFarmsRemastered.esp
49 31 Relationship Dialogue Overhaul.esp
50 32 3DNPC.esp
51 33 Friendlier Taverns.esp
52 34 Summermyst - Enchantments of Skyrim.esp
53 35 Armor and Clothing for Vanilla Child Races.esp
54 36 RSChildren_PlayableOverride.esp
55 37 hjerimtnf.esp
56 38 SkyFalls + SkyMills + DG + DB.esp
57 39 SDO Full-LOD - Waterfall Effects.esp
58 3a SkyFalls Dragonborn Small waterfalls.esp
59 3b RealisticWaterTwo.esp
60 3c SDO Full-LOD - The Morthal Swamp Complete.esp
61 3d Northern Bathhouses.esp
62 3e DawnofSkyrim-AllMajorCities.esp
63 3f TES5R - AngelinesAromatics.esp
64 40 TES5R -The Bannered Mare.esp
65 41 TES5R - BitsandPieces.esp
66 42 iWill_ARavensBreezeHome.esp
67 43 SkyR - Riverwood Interiors.esp
68 44 TES5R - Dragonsreach.esp
69 45 ShezrieOldHroldanVer2.esp
70 46 RavenRock.esp
71 47 SeaPointSettlement.esp
72 48 SoS - The Wilds.esp
73 49 OpulentThievesGuild.esp
74 4a SoS - Civilization.esp
75 4b 3DNPC Don't Call Me Dragonborn.esp
76 4c Hothtrooper44_Armor_Ecksstra.esp
77 4d Uncle Sheo Legendary.esp
78 4e EatingSleepingDrinking.esp
79 4f RaceMenuMorphsCBBE.esp
80 50 UIExtensions.esp
81 51 RSChildren_NonPlayableOverride.esp
82 52 Tempest.esp
83 53 VioLens.esp
84 54 SoS - The Wilds-PatchCoT.esp
85 55 NIOVHH.esp
86 56 TrueStorms.esp
87 57 TrueStorms-ClimatesOfTamriel.esp
88 58 TrueStorms-SupremeStorms-CoT.esp
89 59 FISS.esp
90 5a BlanketScarf.esp
91 5b Scarves! Skyrim Edition!.esp
92 5c LostGrimoire.esp
93 5d AMB Glass Variants Lore.esp
94 5e Differently Ebony.esp
95 5f AddItemMenu2.esp
96 60 Colored Collars.esp
97 61 The Un-Killable Frost.esp
99 63 ExpandedJewelryCrafting.esp
100 64 Proper Aiming.esp
101 65 sandboxcylinderheight.esp
102 66 manny_eyeglasses.esp
103 67 RaceMenu.esp
104 68 RaceMenuPlugin.esp
105 69 Khajiit_Eyes_Extended.esp
106 6a FreedomForNightingales.esp
107 6b RealisticNeedsandDiseases.esp
108 6c TES5R - Arcadia's Cauldron.esp
109 6d ClefJ's Karthwasten.esp
110 6e Left Hand Crossing.esp
111 6f TES5R - BelethorsGeneralGoods.esp
112 70 SoS - The Dungeons.esp
113 71 EFFDialogue.esp
114 72 MrissiTailOfTroubles.esp
115 73 AKSkyrimUnderground.esp
116 74 Dwemer Goggles & Scouter.esp
117 75 Hothtrooper44_ArmorCompilation.esp
118 76 Immersive Weapons.esp
119 77 WeistoneHamlet.esp
120 78 TES5R -The Warmaidens.esp
121 79 TES5R - HouseGrayMane.esp
122 7a Oblivion Gates v3 without Markers.esp
123 7b Oblivion Gates v3.esp
124 7c Laundry.esp
125 7d RDO - EFF v4.0.2 Patch.esp
126 7e PrvtI_HeavyArmory.esp
127 7f Tentapalooza.esp
128 80 aMidianborn_Skyforge_Weapons.esp
129 81 Bijin NPCs.esp
130 82 hothtrooper44_ArmorPatch.esp
131 83 Battlemage Armour.esp
132 84 Moonpath_NoFakeLight.esp
133 85 ClefJ's Half Moon Mill.esp
134 86 TES5R - HouseClanBattleBorn.esp
135 87 TES5R - Carlottashouse.esp
136 88 WayshrinesIFT.esp
137 89 DarkwaterKeep.esp
138 8a RealisticWaterTwo - Legendary.esp
139 8b Inigo.esp
140 8c SitaFollower.esp
141 8d Skyrim Better Roads and Bridges - All In One - Merged.esp
142 8e Run For Your Lives.esp
143 8f Cloaks.esp
144 90 TES5R - Helgen Keep.esp
145 91 Diamond Bluff Settlement.esp
146 92 SDO Full-LOD - Whiterun Trundra Creeks.esp
147 93 SMIM-Merged-All.esp
148 94 DBM_HA+IW+IA_Patch.esp
149 95 TES5R - Severioshouse.esp
150 96 ClefJShorsStone.esp
151 97 SoS - The Dungeons-PatchRLODungeons.esp
152 98 TES5R - Uthgerdshouse.esp
153 99 RealisticWaterTwo - Waves.esp
154 9a Serenity.esp
155 9b Serenity SeaPoint DLC Patch.esp
156 9c TES5R -TempleofKynareth.esp
157 9d CW-HouseOfTroubles.esp
158 9e TES5R - Amrenshouse.esp
159 9f Gri_BeastFeet.esp
160 a0 Serana.esp
161 a1 mihailsuthaypahmaralliancecamp.esp
162 a2 RSChildren - Complete.esp
163 a3 nicer-looking argonians.esp
164 a4 Dr_Bandolier.esp
165 a5 TES5R - Olavashouse.esp
166 a6 Daggercross_Alley.esp
167 a7 Crossroads Inn.esp
168 a8 Skyrim Flora Overhaul.esp
169 a9 SFO - Dragonborn.esp
170 aa SarethiManor.esp
171 ab JKs Skaal Village.esp
172 ac SoS - The Dungeons-PatchRLODungeonLighting.esp
173 ad TES5R -Ysoldashouse.esp
174 ae moonpath_questdata.esp
175 af Wynter.esp
176 b0 Apachii_DivineEleganceStore_Patch.esp
177 b1 TES5R - Heimskrshouse.esp
178 b2 The Pit.esp
179 b3 RealisticWaterTwo - Dragonborn.esp
180 b4 BlackWoodInn.esp
181 b5 PrvtIRoyalArmory.esp
182 b6 JokerineArgonianSettlement.esp
183 b7 Immersive Music Temples.esp
184 b8 plunketStone.esp
185 b9 Immersive Music.esp
186 ba RealisticWaterTwo - Waves - Dawnguard.esp
187 bb SDO Full-LOD - Giant Campfires.esp
188 bc RealisticWaterTwo - Dawnguard.esp
189 bd Gildergreen Regrown.esp
190 be My Home Is Your Home.esp
191 bf AriasHideaway.esp
192 c0 moonpath_priderockoverhaul.esp
193 c1 ZenitharWorkshop.esp
194 c2 Apocalypse - The Spell Package.esp
195 c3 mihailmudcrabmerchant.esp
196 c4 Cliffracers_Solstheim.esp
197 c5 The_Sinister_Seven.esp
198 c6 Contractor Armor.esp
199 c7 CloudArmor.esp
200 c8 VimuneFollower.esp
201 c9 BentPines_for_SFO2.0.esp
202 ca TCoW Improvement.esp
203 cb Compatibility_ICoW_CoWNPCImprov.esp
204 cc Skill Config.esp
205 cd InigoMCM.esp
206 ce Detailed Khajiit Heads.esp
207 cf DBM_RoyalArmory_Patch.esp
208 d0 DBM_SkyrimUnderground_Patch.esp
209 d1 khajiitearrings.esp
210 d2 Insanity's Sorrow.esp
211 d3 SerenityCrewPatch.esp
212 d4 Dual Sheath Redux.esp
213 d5 TKDodge.esp
214 d6 Grass Field.esp
215 d7 Gehenoth.esp
216 d8 SideDragonPriestMasks.esp
217 d9 CopyArmor.esp
218 da RM Light Elven Armor.esp
219 db Remodeled Armor.esp
220 dc AhnassiFollower.esp
221 dd RDO - USLEEP Patch.esp
222 de MKH.esp
223 df Animallica.esp
224 e0 Headtracking.esp
225 e1 FNIS_PCEA2.esp
226 e2 Alternate Start - Live Another Life.esp
227 e3 Dual Sheath Redux Patch.esp
228 e4 mihaildwarvenpowerarmor.esp
229 e5 Tamriel Reloaded HD.esp
PS. If you need any more info, I will gladly try to provide it.
Thank you for taking your time