Multiplus 2 ESS stuck in Passthrough

I have a MP2 with ESS and 4x Victron LifePo4 batteries, also 2xMPPT connected. A VeBUS BMS connected to the batteries and a shunt. All things connected to a Cerbo.

Been running for a couple of weeks now but all of a sudden the system is stuck in Passthrough mode.

Tried to schedule a charge but it won’t affect the MP state. No external grid meter in place and grid has been stable all time. Tried to read the ESS manual but cannot find anything that explains the behavior. Only solution to reboot the Multi?

I had the same at a site and a firmware upgrade fixed it.

Can’t remember the original firmware, but has been running on 506 for months without issue after the upgrade.

Obviously I did not investigate any further once it was resolved.

Thanks for your feedback.

Got it working today after a restart of the VE Bus BMS. Did that from Cerbo menu. So obviously something either with BMS or Multiplus.

I’m running v552. Will post here if the problem repeats.