Hey, thanks for answering - same just happened on Serenity 1.6 as well.
While running game code:
File "game/scripts/week2.rpy", line 5064, in script
show ver11_jas03 with dissolve
Meh, MS sucks ^^ Guess I will try and advance the game over those spots on another machine or VM to get past these. Seems to give a memory error on some transition.