Seems I have this exact same problem and have the game off of Impulse too. So this begs another question, have you tried to go through Raze's fortress? All the other fortresses have this visual anomaly but are otherwise playable. Raze's is fubar, can read my exp
here.
Oh wow. Yep. Before, I didn't try actually going through the fortress, but I just did because of your post, and sure enough I have the exact same issues. Invisible walls in otherwise clear paths (could be more missing texture issues), and platforms/ramps that you can see, but can't stand on.
Thanks Raze, for the Hash link. I had no idea what MD5 was. I did do the support tool thing and sent that to Larian, about 30 minutes after I started this thread, and linked this thread when I did it. No response yet, so I don't know if it did any good.
MD5 calculation (is this what you're looking for?)
Textures.dv2
Size: 1683619840 bytes
Modified: Thursday, November 04, 2010, 4:03:06 PM
MD5: 0072AD18404C688973B54A443A855FDC
SHA1: B98E671D4537F5EE0839A60128E014CDB28619C1
CRC32: 276A7224
Textures2.dv2
Size: 1220280320 bytes
Modified: Thursday, November 04, 2010, 4:01:52 PM
MD5: 2F11AC9E177453FBC029C14F8C308561
SHA1: 228DB92E640D8F425784CF8A3F1D8F079F5959F2
CRC32: 125E75FC
EDIT: And while I'm here:
FlyingFortresses.dv2
Size: 21069824 bytes
Modified: Thursday, November 04, 2010, 4:02:09 PM
MD5: B5094331B6E25BAE9E41232285C6569E
SHA1: 80C0C8F35FA5175F1ACC24F42DAE96F23AE9412E
CRC32: EB8C8A51
