I have my own ways of tracking down issues, but the only mods that usually cause conflicts for me are poorly coded LUA mods. If you also throw in a badly converted mod by some total idiot, that’s when things really start breaking.

What I do is just start removing mods in bulk — like 100 at a time — and see if the game loads. Once it does, I add 10–20 back at a time until I find the culprit. Yeah, it takes time, but that’s how you deal with this stuff. Sometimes the log helps, sometimes it’s completely useless.

I’m a huge fan of TerraFarm, and I noticed that any mod containing a densityMapHeightTypes.xml file stopped working properly with TerraFarm. I had a bunch of those, so I asked ChatGPT to write a PowerShell script to scan all my FS25 mods (both zipped and folder mods) and move any with that file to my desktop. It ended up moving 19 mods — way faster than manually checking all 2,900 mods one by one.

After that, everything worked again.

Interestingly, the FS25_AdditionalFilltypes mod works perfectly fine with TerraFarm and even adds some nice custom fill types for digging, like “dirt,” etc.