I am sorry for the troubles you face Robert.

I do not have Pickit4 (yet) and for the 2 or 3 I use a very nice standalone program (https://pickitplus.co.uk).

I asked if they will support Pickit 4 too. Will report back.

I think you can update you PBP license to the latest 3.1.6. See melabs site.

Ioannis