please upload your save from before you exit that cave. It may be related to the already fixed problem in RC4 (npclevel 2da files) or maybe I just forgot to change her override script manually on spawn so she simply disappeared (part of the automatic cleaning solution for NPCs). We will see. And don't worry, I will make a patch that will fix it for you. Thanks for the report.
Okay, here it is, I updated it to RC4 but the bug persists http://www.mediafire.com/download/foc7wraaf2swepn/000000052-Tim13.zip
BGEE + SoD + modmerge: + mods listed as compatible:
WeiDU-BGEE.log
clean BG2EE With Some Tweak Anthology and EET Tweaks and now EET 1.0 RC4:
WeiDU.log