[SJPONeill]

Problem solved.

Awesome support from Brother New Zealand. Within 2 minutes of logging a job online, a CSO was on the phone and helping work through troubleshooting.

The issue seemed to revolve around the blade holder. The CSO hung up to do some more research and as I replaced the blade holder, I noticed a small - grain of salt size - piece of debris drop away from the locking lever hinge. A quick puff og compressed air and it was blown clear of the cutter.

Did a test run and it went back to cutting perfectly.

Cleanliness in the key apparently. Even a minute particle of cutting debris can obstruct a circuit or a mechanism enough to affect the operation.