baeuchlein on 25/1/2016 at 13:22
Some missions have problems like starting the original Thief game because something isn't right with the FM archive. Recently, versions of the "Keeper of Infinity I+II" campaign occasionally had problems like this one because one of the FM archives did not contain any MISSFLAG.STR file in the Strings folder, and another had two identical MISSFLAG.STR files, but not in Strings, but in Strings\english and Strings\german.
So, which missions are not working for you like this?
About the problem with Circle of Strain: I think that there was a version of CoS once which was made for Thief 1, not Thief 2. Are you trying to play a T1 mission with T2 (or T2 NewDark)? I had something very similar once when I made that mistake.
llanita on 25/1/2016 at 13:38
Ugh, I'm so stupid. Again I made the mistake of putting T1 missions in the T2 folder. I'm so embarrassed. I wish I could delete this entryl lol. Thanks so much baeuchlein.
Tannar on 25/1/2016 at 17:11
Yes, you will always get that blue color when trying to play a T1/G mission in T2. That blue color is how the engine renders a jorge texture, meaning a missing texture in this case. The textures are missing because the engine is looking in the texture folders for a T2 texture name and not finding it.
No reason to delete this thread, though. It can be useful for people with the same issue in the future.