Have the same irritating problem in Bambustudio since update ,have update Handy ,Studio and printer and ams are all the same .
Before I found a calibrate like orca had in the top of header and now it’s all gone and can only calibrate EXTERNAL not any in my ams at all .
And can’t find any that can tell me why or how I get it back.
Started orca and updated that one 2 and get a fault error and get to a link on wiki .
Bits still I can’t do whatever it needs to.