I have done the same test in my Mac, with the most recent 3.6.1 beta (Build: 2022-09-30T18:04:42Z), another serial/USB cable, and it behaves the same way.

When It gets the timeout, I wait some seconds, click again on a manual focus button and starts working again. If I don't click, it goes on with the timeout/bogus errors

File Attachment:

File Name: log_22-42-00.txt
File Size: 90 KB