Also posted on the TTLG forums, spoilers for the fan mission Calendra's Cistern follow!

Just a quick question to those of you who have played Calendra's Cistern lately, I'm having a bug where a scene isn't triggering.

When Brimstone is supposed to confront Calendra in the Shrine, Calendra is missing, making it nearly impossible to sneak through the area

This old thread seems relevant, but it doesn't look like they were able to pin down whether the issue was related to FMSel or NewDark. Unlike the poster there, however, Calendra never moved from her initial location to the Shrine, even if I gave her time. I have the GOG version of Thief Gold as well, and I think the installer comes with a baked-in version (albeit old) of NewDark.

Any thoughts on how I can fix this?

I can't improve on the answers given at http://www.ttlg.com/forums/showthread.php?t=144668

When I played, I had the case where the teleport was broken but Calendra would walk instead. I remember having a go at killing Brimstone myself before she turned up, but I've forgotten whether it was possible or not.

Just as a heads up to anyone else who finds this and had the same issue, the FM needed a patch to run on NewDark, (the upgraded engine). Here is a link to the thread which has a link to the Google Drive repository of FM fixes.

If you follow that link and download the Calendra's Cistern fix, and then unzip it into your Calendra's Cistern folder, (in your mod manager), and then restart the mission, the issue should be fixed. It worked for me anyway.

Nice! I had no idea this was a thing. Thanks for sharing!