I’ve been watching the same film across 3 different devices since yesterday. Despite refreshing the app, I find that the playback times are not syncing across these devices. What might the issue be related to?
If you go to settings > library and watch for the icloud sync to complete before you try to play the film it should sync the time. Also wait till it completes an icloud sync after watching a part of it. That way you have the correct status uploaded to iClould and then it’s available to the next device.