I simultaneously exited my Sov 'Nick Danger' and 8 troops ('Guardians') from captured city Nuesplarra (I used SHIFT to select the 9 units then hit the 'exit city' arrow on my Sov) and immediately the 2 enemy units attacked each of my 9 units individually (not my 9 troops grouped as an army -- I had no time to group my 9 units as an army, or do anything else). The game goes thru 9 attack options (the 'fight' or 'cancel' screen) then 8 combat results and then Windows crashes ("Turn based fantasy strategy game has stopped working. Windows can check online for a solution to the problem. Check online... Close the program") after the 8th result (standard windows crash message).
Windows crash info:
Problem signature:
Problem Event Name: BEX
Application Name: Elemental.exe
Application Version: 0.3.0.2
Application Timestamp: 4bd098af
Fault Module Name: MSVCR80.dll
Fault Module Version: 8.0.50727.4927
Fault Module Timestamp: 4a2752ff
Exception Offset: 00008aa0
Exception Code: c000000d
Exception Data: 00000000
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 1033
Additional Information 1: e926
Additional Information 2: e9263950142051511ceadcb55c0aa80c
Additional Information 3: d0f9
Additional Information 4: d0f9503db77943574b06d7e8446f9b9b
http://dl.dropbox.com/u/5475789/debug.err
http://dl.dropbox.com/u/5475789/DxDiag-32bit.txt
http://dl.dropbox.com/u/5475789/DxDiag-64bit.txt
No memory dump zip file is in ProgramData\Stardock\Elemental - War of Magic.
A save game immediately prior to this, if you want to check it out:
http://dl.dropbox.com/u/5475789/CrashFromCombatExample.EleSav
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Playing around a bit, if only my Sov exits then combat is normal and no crash.
Exiting my Sov with 1 or 2 or 3 or 4 troops -- no crash.
Exiting my Sov with 5 troops -- crash.
I didn't test with 6-7 troops.
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As an aside, this sort of testing would be much easier if we could load save games within a game, and not have to exit/restart to test 
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General note: the game is much improved stability-wise this version! Previous versions were not even close to ready to progress to the next beta stage (for me). This version is starting to seem close.