iPad Pro 12.9" - consistent lock ups

[sonoptik]

mira.web is consistently 'locking up' when used with the iPad Pro 12.9"

sometimes refreshing the browser works, other times safari needs to be completely quit and restarted

tried turning gestures off and locking screen orientation - makes no difference

Mac 10.14.6
Max 8.1
Mira.web (latest)
iOS13
Apple Pencil 2nd Gen
iPad Pro 12.9"

[sonoptik]

happens slightly less after making a 'app' by adding to home screen (but still happens)

I can get it to lock up by going in & out of home screen - unfortunately it seems that ios13 no longer give you the prompt to 'Add to Home Screen' - might want to add this somewhere