Kickr move rear derailleur rubbing problem

has anyone had problems with their rear derailleur rubbing on the kickr move when in the small ring and the lowest gear? I have a 12 speed shimano105 dI2 casette. Never had trouble with my kickr core which I took it off. I have the 142mm adapter. The deraiileur just cannot move completely into position and sticks on the trainer body as it is in the way. Will be a total joy on the alpe de zwift, clicking and rubbing the paint off a £1000 plus machine for an hour or so… If I use the adapter ring, the casette the lock ring won’t fit.