First of all, what is this that I see in user.log? “send mediacrawler 28536 wakeup signal” Is the MBL being woken up about once an hour to verify whether or not there have been new files added?
Also, I deleted a folder and moved another yesterday (in the Shared Pictures folder). In WD Photos on my iPhone, after having cleared the cache, I see that the folder has changed places. But the deleted folder is still there, causing the app to say something like “photo can’t be found”. Even deleting the MBL and re-adding it doesn’t do anything.
It took the better part of a week to finish the scanning of all my photos, so I don’t really feel like having to rescan the library. Especially not if I have to do it after every time I’ve deleted a folder.