Thanks for the info about input handling changes in 5.0.0 @Evgeni_Popov and yes I will need to do camera swaps in my own application, but with my demos above I just wanted to isolate the issue to input handling.
In the meantime I can revert to using 4.2.0 and an older version of TS to avoid the other issue I encountered last week with TS and 4.2.0.