SOLVED: 2/5 Libraries Cannot Be Edited, Otherwise Function Normally

[pavichokche]

I wanted to enable trickplay generation for my Movies library, and noticed that when I go to apply any changed settings to the library it just leads to a forever spinning loading circle. The library otherwise functions fine. In the main user interface it has a proper image which changes weekly like all other libraries. However, in the dashboard -> Libraries page, it has a blank image and simply clicking it does not bring up the management window the way it does for all other libraries. Attempting to rescan it manually the page just refreshes and nothing happens.
I then noticed the case is the same for the 'Collections' library.

Here is what I've tried:
- doing this on multiple clients (the server system browser, android client, Windows Jellyfin Player) it always behaves the same
- enabling debug logging - I followed the instructions and modified the logging.json/logging.default.json files accordingly but there are NO DBG entries appearing in the log at all
- disabled TheTVDB plugin
- I can't disable the library because that setting doesn't get applied when I press 'Ok' either
- I don't know if removing the library would do anything but I don't want to lose the watch status(es) for all my users


Server system is Windows 11 Pro, AMD 5600G
Server, Web version, and build are all 10.9.2, BUT I'm pretty sure this was how the library behaved even on 10.8

Here's a tiny snippet of my log due to a 512KB limit from pastebin -_-
https://pastebin.com/kLp6B7N7