UNPB + HDT-SMP: No armor physics

[pichixox]

Hello,
I recently I decided to do a fresh install of the game and switched from CBBE to UNPB in hopes to get more of a belly node physics support.
I installed UNPB: https://www.nexusmods.com/skyrimspecialedition/mods/9703

and demoniac skin (since UNPB doesn't come with skin textures - this works nice)
and skimpy armor replacer: https://www.nexusmods.com/skyrim/mods/69562/? - this is for oldrim but it says in the description it is SE compatible (I also tried other native replacers and the optional files and it didn't help)
I have all the necessary stuff like SKSE, HTD-SMP stuff (all the newest versions) and LOOT gives no warning whatsoever. I browsed nexus for all the patches I could think of.

The problem: I have physics on a naked body but not while wearing armor. I run bodyslide - no change (tried changing the reference skeleton to the one in female assets folder - no change)
The bodyslide is weird too. It seems the mods do not include body meshes to build only the armor meshes can be built. I tried zaping a few things to be sure the right files are being read by the game - that works). I tried importing UUNP presets from oldrim to get the body textures, that worked and I had buildable body meshes as well as armor meshes using the same preset but physics stopped working altoghether even on the naked body so I reverted these changes. I run FNIS every time I build meshes of course (arm fix and all).

I think the problem is that there is a hkx file missing somewhere to be referenced by the armor. I do not know how to fix this and I found no answer online.
I will be thankful for any help or ideas that I haven't tried yet.

EDIT: also I forgot to mention that sometimes when I tried it I had physics on roughspun tunic in the forgotten prison. But only after one re-equip and any other re-equip after that lost the physics. This happened repeatadly but almost never. It happened like every tenth new game I tried to recreate it. It seemed to happen before all the mods loaded into the MCM.

Edited July 15, 2019 by pichixox

[pichixox]

I fixed the problem by following a tutorial on a site that cannot be named. It's called:

UUNP HDT psychic, collision - My Guide

It fixed all my problems and was compatible with the current SKSE (2.00.16)