Error HMS-0500-0500-0001-0007: what to do?

Today, when switching on my P1S on, it started to update to 01.08.02.00. So far, so good. But when trying to print out of Orca I got HMS-0500-0500-0001-0007. Recommendation is: update Orca. BUT: my Orca is up-to-date. That’s a good example of a deadlock.
And before you ask: yes, I reset the P21S to factory. To no avail.
Known issue?

[EDIT] After downgrading the device firmware to 01.08.01.00 it worked again.

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My understanding is that this is due to the “MQTT command verification failed” added in 01.08.03.00beta/01.08.05.00. LAN Only Mode + Developer Mode works for my setup, but downgrading is probably a more flexible option for the time being.

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Thx. That’s what I did. But still unsatisfactory. I’ll mark it a solution, though it is not really one.

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Yeah Bambu’s been getting really into locking people out after years of exploiting the good will of the open source community.

It sucks but they seem determined.

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I really thought, there’d be much more people using OrcaSlicer and Bambus, who are protesting this. This is breaking the philosophy Bambu stood for and why I bought it. WIll try to get rid of that printer ASAP.

Same issue here. I’ve activate LAN mode and developer option and it works now.
I think BambuLab must to create something to use OrcaSlicer or other slicers maybe developing a thirdParties API or whatever. I don’t like BambuStudio application I think OrcaSlicer is better.