I was not using BAT4MAX for two years, and decided to redownload everything and play a bit. At first i was fooling around with sketchup models, but when previewing them - some parts of models were missing (for example 10% of roof), but I remember that it was not easy to export correctly sketch up model, so I gave up believing it's a glitch of sketchup models. But then I started modelling this ugly building and after almost finishing i noticed on preview that i am also missing parts of roof and wall, they are textured, there are any holes there.
Any hints how to fix it? 2011 3dsMax, I believe i have installed this file from maxis (models something).
Cheers and thx in advance