Error:

233x ...rfaceHandyNotes_Dragonflight/core/groups.lua:62: attempt to concatenate local 'mapID' (a table value)

Group:GetDisplay(): excepts a mapID not the map object.

Nice find. It looks like this is only hit when the "Use map settings" option is enabled, so I missed it. Will get it fixed for the next release.

v29 is out with the fix. In some minutes (depends of Curseforge) it will be on line for download.

Regards