Hey, GMiller, love your mod. I am not a modder and not super techy, but I can tell you my experience and help you as much as I can as I'd love to keep using your mod.
I loaded several mods on December 18 and really loved it. I was running TCS Omnibus 1.2.2, Better Trade Screen, Production Queue, More Lenses, Larger Worlds 2.3, Detailed Worlds, Research Reminder, Alert Guard and your Unit Report Screen. I also had NameAlreadyUsed's version of Divine Yuri's CityPanel mod.
When the winter update came out, my existing game broke such that I could not click the toggle that brought up the City Details screen on the top left. I restarted a game and have not experienced that same problem. However, in subsequent games, every time I acquire enough faith to get a pantheon, the "get pantheon" button becomes inactive and does not bring up the pantheon screen, essentially freezing my game because I can't continue. At first, I thought it was the CityPanel mod as that thread had people having problems with various buttons becoming inactive, so I deleted that mod and re-added an update he'd made, but that didn't help. Then I just deleted that mod and the game still froze when I reached the pantheon stage. So then I began removing one mod at a time, playing 38 turns in fortify mode with the god king policy until I accumulated enough faith to get a pantheon. I finally got to your Unit Report Screen and, once I'd removed that mod, I was able to choose a pantheon. I re-added all of the other mods except yours and tried again and was able to choose a pantheon. I didn't expect your mod had anything to do with the choose pantheon button - I can only tell you what I found...and it appears something about your mod and the choose pantheon button in the winter release is simply not working properly...
Let me know if you need any more assistance. If you need a log or something, it would help if you provided specific instructions about how to get it to you as I'm not a technical person, but am detail-oriented and can get around a bit if I have good instructions.
Thanks again for the time you (and everyone) puts into these mods - it makes a huge difference in the gameplay! And Merry Xmas too!
EDIT (12/29): I played a game with your mod removed. As I mentioned, I was able to choose a pantheon, however my game froze later when I could not choose a religion - the button would not advance to the religion screen. So...now I'm not sure if it was your mod or one of the other mods above. Regardless, this sucks and I'm hoping someone can figure out how to help me. Is there anyway to fix the issue in-game? Or should I just go back to playing vanilla...
EDIT (12/31): Wow, tried again with only Detailed Worlds and got stuck not being able to click the Choose Pantheon button again. This means that there is either a problem with Detailed Worlds OR a defect in vanilla Civ. Either way it sucks - does anyone know how to override the game to be able to choose a pantheon - is there a developer command I can use or something?