Regarding the issue i had with the D-input controller overriding the x-input in the reader, it seems to be a windows issue not specifically LB as i had the same problem testing ShadPS4.
MPC-HC.mkvVLC.mkvWMP.mkv
This is a 29.97fps video (all recorded at 60fps), the mpc-hc one outside of LB is smoother so it's not just 60fps videos. Experimental turned on.
No issues with experimental mode.
Win 11, 1060 GTX 6GB, i5 12400, 16gb ram
When adding fanart backgrounds i've noticed If 'screenshot-gameplay' exists for an entry then it's still shown in the top banner when im sure 'fanart background' used to take priority, i think this changed in one of the updates a while back. It's not a big deal but it makes the database more visually appealing and professional looking.
If its happening everyday that's because you have automated imports turned on is it not? Turn that off and back on when you have games to add, or until 13.28 is released.
Performance wise everything seems very smooth and fast now, just have the same issues others have mentioned still.
Losing focus in BB when pressing B.
Item height of box details not saving.
Also i can map a controller in Reader mappings since Beta 3 but control is always on a different pad, a Dinput pad which is not the one im mapping or even the one that its supposedley detecting (Xinput).