I'm on macOS (latest Catalina 10.15.6), Hp Prime Connectivity Kit 2.1.14425 (2020 1 16) and have a Prime G2 (Hardware D) with Software 2.1.14433 (2020 01 21), Operating System V2.060.650.
The Prime is connected via a microUSB to USB-C cable which served me well for a long time and indeed has worked fine in this setup.
However, currently I have the following problem:
The Prime is connected.
I start the Connectivity Kit app on the Mac.
The Prime is listed and the Monitor panel shows its screen.
As soon as I click on the disclosure triangle to the left of the Prime where it is listed in the Connectivity Kit the Prime crashes with the message "Your HP Prime had a problem and will reboot in 3 seconds".
Which it does – but as soon as it comes back to its Home screen, after another 3-4 seconds, the Connectivity Kit crashes.
This happens always.
Are there newer versions available? The Connectivity Kit doesn't report/find newer app/firmware versions.