I have not had a response from BL yet.
I found out that the issue occurs after around 3 hours of printing, shorter prints print fine without issues.
If the printer is powered off for the night and I start another print the next day, it prints fine again for 3 hours before the issue starts happening again and then it happens around every 15-20 minutes.
@stevehinze57 The feeding wheel inside the AMS has its tension controlled by a spring, but its not adjustable.
@froboz I have replaced the entire extruder including the filament sensor but this did not fix it.
I will keep an eye on the green light, maybe the connection to the toolhead PCB is bad, or the entire PCB is bad.