If you are driving in PZB restricted mode in the BR143 and hit PZB release, followed by acknowleging SIFA (with B on the controller), the PZB acknowledge knob will slowly tilt forwards. The PZB acknowledge alarm will sound a few seconds later and the knob resets. This behavior usually occurs the next time SIFA is acknowledged with the B button. Subsequently, the PZB acknowledge knob won’t creep forward when using B to silence SIFA until you drive in restricted mode again. Considering that PZB acknowlege doesn’t normally work on the BR143 with the controller, I’m curious if this bug is related.