Unable to complete missions when Scarab is utilized, stuck on loading screen. Vehicle not proficient

Hi Team, I am using the macOS version of Phoenix Point. Running on a Macbook Pro (16 inch 2019, 64Gb ram)

I just started my campaign. When I add the Scarab and attempt to enter any mission it gets stuck on the loading screen. I restart Phoenix Point, unload the Scarab and go into the same mission with just troops there is no problem.

I try on other missions, the same scenario plays out as described above.

I notice there is a message when adding the Scarab a message in the status of the vehicle reports ‘not proficient’.

I hope you can help. Please let me know if I can provide any logs. I searched through the forum and online and could not identify the same issue for others.

Many thanks, S