All textures being white in GLBoom+ 2.5.0.7

[Catpho]

Hi. I wanted to use an old version of GLBoom+ (2.5.0.7) for historical/personal reasons, but I'm encountering an error I haven't seen before. For some reason, on default settings, even without fiddling with any of the gl options, all the textures are replaced with whites like this:

 

 

This only seems to happen in the gl renderer.

[nickxcom]

I'm not sure what is going on here, but I DID laugh out loud- it reminds me of the "DIY" mbf21 wad, but unintentional. I hope someone can help you find a solution!

[Graf Zahl]

What's your graphics hardware and operating system?