Floating quest markers not showing randomly

[bar1004]

I have a problem with my quest markers, the game randomly displays or not displays some floating quest markers, map quest markers are fine and that's how I know that the floating ones are gone, I will show it on a example of a inn, where I have currently 3 active quest and sometimes when I launch the game, sometimes when I reload the save or I activate quest markers for Stones of Barenziah, some of the floating markers attached to those quest disappear and to repair them I have to either disable some quests in my journal or relaunch entire game (or with the Stones disabling markers again sometimes works, but relaunching game also does).
So... Is there a limit for a number of floating quest markers? Because that would explain why turning on 'Stones' vanishes some markers (too many new markers, so the older ones disappear, but after relaunch they load in different order so they reappear). Or is it some odd bug? Is there a fix for this? It's really frustrating having to relaunch the game so many times or open map every time I want to know where my quest is.
I tried turning every mod off, but it seems to be as random as with mods.
Links to screenshots:
Map All active One inactive Two inactive

EDIT: Here is my mods list and load order from Nexus

GameMode=Skyrim

Skyrim.esm=1
Update.esm=1
Unofficial Skyrim Patch.esp=1
SMPC.esp=1
Dawnguard.esm=1
Unofficial Dawnguard Patch.esp=1
SMPC_DG.esp=1
HearthFires.esm=1
Unofficial Hearthfire Patch.esp=1
SMPC_HF.esp=1
Dragonborn.esm=1
Unofficial Dragonborn Patch.esp=1
SMPC_DB.esp=1
Immersive Citizens - AI Overhaul.esp=1
Better Eagle Eye Redux.esp=1
ConvenientCrossbows.esp=1
Convenient Horses.esp=1
Hothtrooper44_Armor_Ecksstra.esp=1
Weapons & Armor Fixes_Remade.esp=1
Weapons & Armor_TrueWeaponsLvlLists.esp=1
Immersive Weapons.esp=1
WeaponsArmorFixes_ImmersiveWeapons_Patch.esp=1
Hothtrooper44_ArmorCompilation.esp=1
Ars Metallica - Legendary Edition.esp=1
Immersive Patrols II.esp=1
BLESSINGS - Altar Descriptions.esp=1
JaxonzSmartLooter.esp=1
AHZmoreHUD.esp=1
SkyCompleteLegendary.esp=1
SkyUI.esp=1
VendorSaleDelay-Gone.esp=1
SSoB.esp=1
Alternate Start - Live Another Life.esp=1

Edited July 25, 2015 by bar1004

[Estroya]

I'm not sure if this is what you meant but you only see 4 markers in a interior cell with the barenziah mod enabled, because you would have to go through the door to get to the stones. so all markers that show the barenziah stones are merged to the doormarker.

[bar1004]

I'm not sure if this is what you meant but you only see 4 markers in a interior cell with the barenziah mod enabled, because you would have to go through the door to get to the stones. so all markers that show the barenziah stones are merged to the doormarker.

No, I know that most of the quests are exterior, the problem is that the floating and compass markers are gone most of the time for some quests, but map markers are fine, so if I don't know where to exactly go or to whom exactly speak I need to open map every now and again.

And barenziah mod is there as an example because activating it also breaks some markers (not all of them) and deactivating it or relaunching the game helps most of the time, but for short time, because either relaunching breaks other markers or later loading game also breaks it.

Edited July 27, 2015 by bar1004

[andryandrew]

I have exactly the same issue, and my modlist does not include any of yours apart from the USKPs and SkyUI (so we can rule a mod problem)

 

I extensively searched on google for the problem, and every now and then someone experienced it. Someone knows how to solve it? It actually seems there's some sort of "cap" on floating markers: they start loading in random order and when they reach this cap they don't load anymore
But that's just a theory that reproduces my observations :D

Edited August 18, 2015 by andryandrew