Okay, I snuck in a bit of time before I left my parent's house. Open Car and Shallow both worked on pro guitar, at least. Although I hadn't tested those to see if they DIDN'T work previously.
I wanted to test Anesthetize, since it's the only one I actually checked (and it failed) before making this thread, but it didn't show up ingame. I had de-packed (using con tools) about 10 songs from that large pack Whizzer posted and put them on my RB3 USB. A few didn't show up, but I think it's due to the 3000 song limit, which I am very close to. For the first time in my life the game yelled at me about the 3000 song limit and said some things may not show up, so I assume that's why some of these didn't.
I had also deleted the rb3con files for the previous (beard) versions of the PT songs I had on the stick. They had different filenames than the ones that con tools generated, but I think some may have shared song ids, becuase a few of the whizzer versions had a score present. I think the game will give it a score if you got a score with another file with the same song id, even if the filename is different? I'm just guessing, but that seems likely to be the case.
Edit: Cleaned up my song cache a bit. All the songs show up. I tried Anesthetize, it also worked on pro guitar. Everything seems good. Thanks!
As a side note, any idea if there are any differences in these charts vs beard's version besides pro guitar (differences on any instrument, only caring about expert)
Edit2: Actually, there's a rather large problem with Anesthetize. This whole section:
From the timestamp (400 seconds) until the vocals come back seems broken. The game shows them as open mute chords but they clearly aren't if you listen, as the pitch changes frequently. Additionally, for open chords (i.e. ones with no number ingame) you should not hold any frets, but that doesn't work. I tried holding some frets that "seemed" about right and some of them even worked. I think the chart is expecting certain chords, but for some reason they are not showing up visually, so it's impossible to tell what you need to do.
This is with chord number both on and off.