I have a Saros 70r and see this in HA logs
Logger: roborock.code_mappings
Source: components/roborock/coordinator.py:301
First occurred: 13:02:24 (1 occurrence)
Last logged: 13:02:24
Missing RoborockFinishReason code: 78 - defaulting to 21
Not sure what I can do to work out what the code means as I can't see anything helpful in the app.
The history says "Finished cleaning" but has an exclamation mark icon next to it. I think it is to do with items being detected and possibly trying to move some shoes (which is going to be unique to the 70r).