SOLVED: Migrated to Docker: can't scan libraries?

[TheDreadPirate]

Switch the bind mount for your media to a volume. I'm not expert enough to explain why, but bind mounts introduce some complications that require extra configuration to get everything to work correctly. Its easier to just mount your media as a volume.

Those token errors may be related to your migration. Your clients may be using cached tokens for authentication that may not be valid anymore. Or something like that.