Bug that I've been dragging around for months

Hello everyone,
I’ve had Kodi for many, many years, during which time I’ve continually refined the settings, playlists, and interface creation using Skin. This represents hundreds of hours of work. The problem is that for 1 year, I have been walking around with this bug update after update: Problem with fast forwarding by chapter
I have used Core Elec backup to restore the system numerous times hoping that the restore would bring back all my work without the bug, but unfortunately it brought the bug back with it. I was wondering if there was any chance to create a partial backup/restore, so that the majority of settings are restored, while still restoring things in a “sanity” way.

I tried with the Backup tool, unfortunately, I don’t know for what reason but it only brings back the playlists.