When accepting "Auto Update progress for ... " and finishing the first episode, the progress is set to episode 0 instead of episode 1. However, when you complete episode 2 it does go back to correctly updating the progress in relation to which episode you watched.
Example update progress message after having watched first episode of an anime:
App version:
3.1.0
When accepting "Auto Update progress for ... " and finishing the first episode, the progress is set to episode 0 instead of episode 1. However, when you complete episode 2 it does go back to correctly updating the progress in relation to which episode you watched.
Example update progress message after having watched first episode of an anime: