After further evaluation, I found out that if the same images are tagged from within the All Media view, their metadata is immediately reflected within Tags and other views. 😄

I’m used to check against the source in such situations so digging into the topic as an outsider, it is not unlikely that this behavior arises from measures to keep things smooth even if servers are unreliable and is therefore intended.

In that case the embedded metadata within my test folder has not been fully pulled – does this only happen if preview images are generated? If so, how can this be triggered for a whole folder (hierarchy)? Is it recommended to outsource metadata into xmp sidecars so that they are all synchronised in the background?

If the metadata synchronises, your application would be a true paragon on the android platform – please confirm so I can purchase 👍