This problem is pre-existing to this patch, as I had it occassionally crop up in the last patch while running my Catapults.
However, I was able to duplicate this problem 100% of the time by dropping in my Centurion-A. For whatever reason, that causes the mech textures to not load. I made this confirmation last night, but waited to post to see if it would be resolved this patch, and it has not been (I haven't seen it reported elsewhere). Have not tested other Centurion variants to see if they cause it as well, but I do occasionally get the mech texture drop with other mechs as well, but the something about the CN9-A procs it every time. (EDIT: almost every time, I got one match on Frozen City (not night) where they loaded properly)
I'm running 64bit windows 7, 4Gb DDR3, and a Radeon 4870. Graphics are set to medium, no other special tweaking aside from resolution set to 1680x1050 and fullscreen.
Update: I tried the AL and D models of the Centurion as well, textures loaded just fine with them, but again went blank with the A variant. Not sure what the cause is, but it seems to have at least some statistically significant ties to particular variants, the CN9-A for sure.
Edited by ExAstris, 05 February 2013 - 07:31 PM.