I know it's a bit late, but thanks for letting me know. I released an update not long after you posted this and, from what I can see, all the errors you've listed were what was causing problems.

The 'culture_group' trigger was valid in previous versions but was made obsolete in Royal Court as culture groups have been removed entirely, replaced by dynamic cultural heritages. Triggers in the mod should now use these instead.

The 'weight' condition essentially told the game how frequently a track should play and it was valid in all previous versions but, for whatever reason, it was removed with Royal Court. I've removed it from all tracks in the mod files and it should no longer be reported as an error.

Thanks again!

Thanks for you hard work. I love the mod!