On the upside, I can get screen captures again. On the downside, I'm getting the corupted-background-on-2nd-or-later-or-replay-mission bug. Even worse, FSO is now starting to miss-render some craft (fighters typically) by suddenly removing their textures. Now, its not like the bug where its in the wrong DDS dimensions or missing textures, but just decides to do this. As with the corrupted background thing, this only occurs on the 2nd mission. Ending the program and restarting will return the affected craft to their intended appearance.
Here's a screenshot of the background corruption thing:

Something else I'm getting with the debug build, is this:
Warning: Debriefing persona index must be in the range of 0 and 254 for mission 'B37.fs2'!
Any idea what that is? Debug FRED doesn't give this, only debug FSO. I hadn't encountered this until today, but apparently all debug builds from some time back give it for this and other missions. I've looked through in notepad and I can't find anything about debriefing persona in either missions it does complain about, and those that it doesn't. It should be noted that this error comes up as soon as a pilot is selected that is assigned to a campaign that this thing complains about, either during startup of the game or selected from the pilot room.