Well, I'm not sure wether I should be posting this here since I'm using a development version, but here it goes: I can't load any saved games on 2.1. It saves normally, but the game crashes whenever I try to load. Here is the output:
"version" is "UFO: Alien Invasion 2.1-dev i386 Sep 27 2006 Linux"
...using language: C
...svn revision: 3847:3849M
Shared Client/Server Info loaded
...precaching 51 menus
Can't find pics/
Can't find pics/menu/buildings_ll
Can't find pics/menu/buildings_lr
====== UFO Initialized ======
Changing to Singleplayer
Savefile version 5 detected
Global data loaded - size 5610836 bytes
ufo: client/cl_campaign.c:1580: CL_UpdatePointersInGlobalData: Assertion `base->curTeam[p]' failed.
Received signal 6, exiting...
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 134
Minor opcode of failed request: 10
Serial number of failed request: 503