[Lusephur]

Long time member, rarely post problems, usually find solutions or what not via the forum, but I've not seen this one.

My device uses only sideloaded books from calibre, converted to kepub on transfer with series info added to database upon reconnect. Book covers are to retain dimensions etc, and conversion is at tablet setting (no resizing of internal images etc)

Anyway, onto the point, when I put my device to sleep, (book covers full size, info panel on screen) a weird behavior occasionally happens. The screen blinks, and refreshes in six regions. (picture the screen divided three across by two) with a blink occurring at the top left panel first, then bottom left, middle top, middle bottom, right top, right bottom.
Now, normally, i wouldn't mind this but after this behavior starts the database starts to become corrupt.

I've signed out of my account and signed back in, behaviour occurs a few days later.
I've factory reset the device, behavior occurs a few days later too.

Is it just my device getting knackered? Is it the firmware? (But i've not seen the issue listed anywhere else) or have I shagged the bastarding thing with too many books loaded (3 thousand,)