Bluetooth won't stay connected on Raspberry Pi 3

I definitely understand the response, especially being a noob (I preach RTFM myself), but I’ve researched this issue for several hours on this and other forums before finally deciding to post when there was no solution I could find (that’s definitely not to say I didn’t miss it, though). I’ve read through threads about BT forgetting connections after reboot, BT dongle issues, can’t connect issues, and even the “BlueTooth Mega Thread”, but these weren’t the issue I was having, which is that would connect and then immediately disconnect.

The thread that actually does reference it is this:

It states back in April that the issue should be fixed in the next update, but apparently it wasn’t, and that thread dies with no solution. I’ve unpaired/forgotten connections/rebooted/re-paired ad nauseam (both through the OSMC GUI and the command line), but the result is always the same.

If the update with the fix is still in the works, I understand and can wait for it, but it sounds like it should have at least been fixed in the last update. If there’s a fix I can apply, I’d love to get this working, but if it’s still a known issue with RPi3, I just need to know so I can stop working on it for now.