Intermittent channel "remapping"

Hi all, I'm running a RPi5 with the 8ch HifiBerry DAC (Debian 13), and on top of that JACK (1.9.22 I think). Sometimes when I startup the system, there's a channel "remapping" where channels 1-4 becomes 5-8 and vice versa. This is (reasonably) reliably "fixed" with a restart of the JACK service, albeit non-optimal. Any ideas on where in the pipeline from JACK to the DAC driver this mess-up could occur? The RPi5 has 4 stereo I2S ports which are coalesced into 8 channels in the DAC driver. Best regards /Robert Bielik The information in this email (including any attachments) may contain confidential and/or proprietary material. Any review, retransmission or use of this information by persons or entities other than the intended, authorized recipient is prohibited. If you received this email in error, please notify the sender and delete the material. For information regarding how Dirac handles personal data, please visit https://www.dirac.com/privacy-policy.