Are you able to move from the usual Settings -> App or is there a different process for it? Also, did you try moving Facebook/WhatsApp?And, I don't know if this was a past problem but it would appear I am able to put most of my apps onto my SD card; whereas, before I could only put so many.
I can confirm that 12.1 build 3/31 works well in the Indian dual SIM also with SIM1
The only thing still does not work for me is calls on speakerphone (other side can't hear me if the phone is even 1 ft away).