Correct. I’ve found the issue, however - it was the Shield’s SD card interface!
I reset the Shield to factory, ejected the SD card, and attached a USB HDD as external storage. Plex rebuilt TV and movie libraries overnight with no issue.
Out of curiosity I reset to factory again, and used a different known good SD card from my Nintendo Switch, and the problem resurfaced with exactly the same symptoms. It’s as if the Shield’s SD card interface is going to sleep every 15 mins, even though the Shield is set to never sleep, and there is data being actively written to the card.
This SD card behaviour is new, and I’m now guessing there’s perhaps been a driver change since the update to Shield 8.0 or 8.0.1, as the same SD card setup worked perfectly well up until recently. I’ll have a look through the Nvidia forums to see if anyone else has experienced a similar issue, or if it’s just my hardware which may be faulty.
I’m now off to buy a small external SSD, as the HDD performance is woeful. One last database move and I should be back up and running.
Thank you for having a look through my issue and logs, and trying to puzzle it out with me. It was quite a bizarre problem in the end, and certainly not what I was expecting. I appreciate the time which you’ve put in, and I hope perhaps this may help someone else with a similar setup.
I’ll x-post this to my other thread comments to tie up loose ends there.
