which maps are affected? we need more information. post screenshots please.
Farm, Village commercial (savegame with mission on the last uploaded on the SF tracker, link is upwards)
1) Your OS platform (Win32 or 64 aka XP / Vista, Linux (redhat, ubuntu, suse), Mac)
Win32, XP SP2.
2) Version of the dev built (i supposed 25321 non debug), (some prior=which priors??)
UFOAI 2.3 R25321 NON DEBUG Developer's Built, but happened also about build or two before on the Farm map (Aliens shooting through Harvester).
3) Self built i guess? Or downloaded?
Downloaded.
4) Which maps names? (Aka when u enter the battlescape, the "africa" "+maps" etc name).
5) Provide a savegame?
Farm, Village commercial (savegame with mission on the last uploaded on the SF tracker, link is upwards).
6) Provide console logs?
Uploaded on the tracker (link posted before).
7) Screenshots (F12) ? - The shots will most likely be saved to your C:\Documents and Settings\(USER ID)\Application Data\UFOAI\2.3-dev
In the mission I uploaded with savegame you will see this for sure (reproduced 3 times, all with the aliens shooting through buildings and own UFO). So, I don't think screenshots are helpful, but I'll try to provide them later.