Alright, it's been resolved! The solution was to install bluez-git, delete /var/lib/bluetooth and, most importantly drain the power from my PC. I tried the first two steps a while back, which was detailed in a different thread. I never drained the power because most people said that their issue was resolved after the first two steps, so I figured there was no need.
But I found one other person who, like me, was only able to finalize those changes after draining the power. I'm not entirely sure how that is different that a restart, but I'll take it!
Thank you @filo for your assistance throughout this process. I'm sure I wouldn't have eventually found my way to that solution without your helping me research. Thank you very much!
This is my first time using the forum, so I'll try to 'resolve' this thread properly, but please let me know if there's another step I need to go through. Thanks again!