Hi guys, after playing crash-free an early era campaign for 51 turns with Jerusalem i got a CTD. Medieval 2: Total War encountered an unspecified error and will now exit. After following AI movement the crash occurs after the Khwarezmian Empire's turn, just before the banner changes to rebel. I am running win 8.1, kingdoms 1.5 and SS 6.4 with UAC deactivated.

Here are the last lines of the the system.log
Spoiler Alert, click show to read: 
19:00:51.185 [game.script.trigger] [trace] Trigger <0004_Normalise> fired
19:00:51.185 [game.script.trigger] [trace] Trigger <0286_Hanseatic_Control_Thorn> fired
19:00:51.215 [game.script.exec] [trace] exec <if> at line 8921 in mods/SS6.3/data/world/maps/campaign/imperial_campaign/campaign_script.txt
19:00:51.218 [game.script.exec] [trace] exec <if> at line 8947 in mods/SS6.3/data/world/maps/campaign/imperial_campaign/campaign_script.txt
19:00:51.218 [game.script.exec] [trace] exec <spawn_army> at line 8967 in mods/SS6.3/data/world/maps/campaign/imperial_campaign/campaign_script.txt
19:00:51.237 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/heretic_generals/008.tga
19:00:51.237 [system.io] [info] exists: missing data/ui/southern_european/portraits/portraits/young/heretic_generals/008.tga
19:00:51.237 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/generals/008.tga
19:00:51.237 [system.io] [info] exists: found data/ui/southern_european/portraits/portraits/young/generals/008.tga (from: packs/data_3.pack)
19:00:51.238 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/generals/008.tga
19:00:51.238 [system.io] [info] exists: found data/ui/southern_european/portraits/portraits/young/generals/008.tga (from: packs/data_3.pack)
19:00:51.238 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/heretic_generals/008.tga
19:00:51.238 [system.io] [info] exists: missing data/ui/southern_european/portraits/portraits/young/heretic_generals/008.tga
19:00:51.238 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/generals/008.tga
19:00:51.238 [system.io] [info] exists: found data/ui/southern_european/portraits/portraits/young/generals/008.tga (from: packs/data_3.pack)
19:00:51.238 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/generals/008.tga
19:00:51.238 [system.io] [info] exists: found data/ui/southern_european/portraits/portraits/young/generals/008.tga (from: packs/data_3.pack)
19:00:51.239 [game.script.trigger] [trace] Trigger <New_Faction_Leader_trigger> fired
19:00:51.239 [game.script.trigger] [trace] Trigger <King_BecomesLeader> fired
19:00:51.239 [game.script.trigger] [trace] Trigger <factionleader_normalfactions> fired
19:00:51.283 [game.script.exec] [trace] exec <set_event_counter> at line 8968 in mods/SS6.3/data/world/maps/campaign/imperial_campaign/campaign_script.txt
19:00:51.284 [game.script.exec] [trace] exec <console_command> at line 8969 in mods/SS6.3/data/world/maps/campaign/imperial_campaign/campaign_script.txt
19:00:51.319 [game.script.exec] [trace] exec <if> at line 8973 in mods/SS6.3/data/world/maps/campaign/imperial_campaign/campaign_script.txt
19:00:51.319 [game.script.exec] [trace] exec <spawn_army> at line 8993 in mods/SS6.3/data/world/maps/campaign/imperial_campaign/campaign_script.txt
19:00:51.326 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/heretic_generals/162.tga
19:00:51.326 [system.io] [info] exists: missing data/ui/southern_european/portraits/portraits/young/heretic_generals/162.tga
19:00:51.326 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/generals/162.tga
19:00:51.326 [system.io] [info] exists: found data/ui/southern_european/portraits/portraits/young/generals/162.tga (from: packs/data_3.pack)
19:00:51.326 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/generals/162.tga
19:00:51.326 [system.io] [info] exists: found data/ui/southern_european/portraits/portraits/young/generals/162.tga (from: packs/data_3.pack)
19:00:51.326 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/heretic_generals/162.tga
19:00:51.326 [system.io] [info] exists: missing data/ui/southern_european/portraits/portraits/young/heretic_generals/162.tga
19:00:51.326 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/generals/162.tga
19:00:51.327 [system.io] [info] exists: found data/ui/southern_european/portraits/portraits/young/generals/162.tga (from: packs/data_3.pack)
19:00:51.327 [system.io] [info] exists: missing mods/SS6.3/data/ui/southern_european/portraits/portraits/young/generals/162.tga
19:00:51.327 [system.io] [info] exists: found data/ui/southern_european/portraits/portraits/young/generals/162.tga (from: packs/data_3.pack)
19:00:51.424 [system.rpt] [error] Medieval 2: Total War encountered an unspecified error and will now exit.


SPECULATION: Probably there is an issue with the Bulgarian Uprising Event.

Thanks