Android to RasPi3 watched migration

I’ve moved from a MyGica Android TV box to Raspberry Pi 3b/LibreElec8. I tried using the Backup addon to restore settings but had problem restoring the db ( RaspPi refuses to boot after a db restore ). I then used Trakt and Watched addons to do this – it works great but only for library stuff. I have for eg. youtube videos that are not in the library ( ie. I watch them through Videos -> Files ). The watched indicators for these are not transferred with either Trakt of Watched addons. Any ideas on how to do these?

Regards