
You can load up vmf files from games using the same engine version (Gmod is one of them), then recompile them for use in TF2.

If you click on no, it should keep the prop_static entities.Īfaik, only maps compiled with TF2's hammer (launch it from Team Fortress 2/bin) will work in TF2.

If you click on yes, for some dumb reason that can described best with "because Source" removes all your props. The reason the prop_static entities disappear is because of some obscure bug related to the "FYI, something something invalid solids were removed, would you like to re-save something something" message that appears when you open a decompiled map.

The reason you're getting those big red ERROR signs/bright white materials is because they are props in Gmod that you don't have the source files of on your computer, so Hammer places the default "hey, I can't find this file you're referencing here so I'll place this giant red ERROR sign, oh you have missing materials as well, here, enjoy a black/purple checkerboard or a completely white texture".
