3 of us! 3 of us! 3 of us!
I followed the example of the other person on Facebook and did a factory reset. Luckily I have most of my stuff on the SD card but i'm still going to have to set up a bunch of stuff again.
But more to the point, it worked!
I did a fresh install of BG onto deck storage (not SD) just to be sure (which still took forever cause 122GB) but I'm in and playing!
I see that you, like me, always ends up with a few screws left over π