C 9.5 project load into C10 insert fault

loading a 9.5 project into C10:
insert slots contain the appropriate plugin, but it is switched off and can not be activated. it can also NOT be removed or changed to another plug.
attempt to open same any plugin in another insert slot of that track leads to the same result.
so far this seems to happen only on group tracks/inserts.
had a similar problem from 9 to 9.5 update.

makes working on 9.5 projects in C10 impossible!!