TrenchBroom 2019.6 on MacOS Mojave
When exporting OBJ file for import into other software, the UVs appear to be flipped along the Y axis.
Trenchbroom:

Unity:

Blender:

Sounds like this to me #2851.
Yeah - it's fixed in git. We should have a new beta/RC soon with the fix
I just ran into this as well :smile: thank god for GitHub's related issue search. Looking forward to the fix :+1:
Most helpful comment
Sounds like this to me #2851.