Wrong photo thumbnails
I've just set up a RasPlex client and I'm seeing some odd behavior with Photos.
When viewing a folder gallery, the thumbnail for the first photo is used for many of the other photos in the set. If you open one of those other photos, you can see the correct image.
I tried deleting all of the files in the UserData/Thumbnails folder and rebooted. No joy.
I'm using Raplex 220.127.116.11-b604995c