ESC Desync issue

I THINK my ESC is playing up. I can replicate the issue in the air and on the ground, after a short period of the prop spinning the motor stutters. To me that is an ESC sync issue. Being a stock Volantex ESC I can’t adjust the timing to see if that may fix the issue.
I tried with another similar motor and same issues. I’m avoiding replacing the ESC until I confirm it is the ESC. This ESC works fine when I run without a Ardu FC.
I’m new to analyzing log files so any help would be appreciated. Thank you in advance

ESC: Volantex 30A
FC: Matek Wing 405

Ranger (Ardu).param (25.8 KB)

Log Files: