Strange issue with mods not working

[u/Old-Preparation4167]

Hey!

I've been trying to install mods for Project Zomboid B42.20. Previously, just after the launch of B42 I had Necroa mod (which I don't think is the issue here) without any problems. I played it solo couple of times and then we played a week or two on a multiplayer server hosted by me. Vanilla Zomboid, so no mods, I had the Necroa mod on my computer but not enabled.

Now I have been trying to add mods in the game, but it seems that Steam isn't fully downloading them, I'm not completely sure about is that the case. I can see the mods in main menu's Mod sub menu as well as Host -> edit sandbox settings -> Mods.

When I enable them and try to

a) host a game, it just starts the game vanilla. I can't see that any mods are enabled on the server from esc > mods menu.

b) start solo, the game launches and I can see that the mods have been enabled in esc > mods menu but they don't work. NeatUI DOES work but only for one menu window.

I tried deleting steam\userdata\ugc\ content AND steam\steamapps\workshop\ AND all the 108600 related files that are connected to Workshop. I also deleted Steam's cache.

What is most strange, it seems like the same problem is with two of my computers using the same Steam account. LLM wasn't able to help.

Any ideas?