Yes, you're right, I have steam cloud enabled. So replacing player-data.json in Steam\userdata helped. Thank you very much for help! It was so painful to reconfigure shortcut bar before.

Are you sure about that? Because I already tried to backup/restore player-data.json. It doesn't have an effect. I even tried to backup all "%AppData%\Factorio" dir – same result. It seems like player-data.json just reflects config of last session.

Hello. Is there any way to backup the "shortcut-bar" config? I need to backup and restore the order of the my shortcuts. It resets each time I change the modpack (disable most of current mods).