I retested it with that version, but does not help.

I removed all #cmdSetup from the Hameg definition. Then it was an empty menu, but no logging issues.
I put some back:
#cmdSetup radio Integration_Time
#cmdSetup buttons Zero_(Offset)
Still ok, no logging issues
But if I put back some more:
#cmdSetup info Active_Mode
#cmdSetup radio Auto_Range
#cmdSetup radio Range VDC (multiple....)
#cmdSetup selector Mode_settings
Then the problem occurred again, no logging.
Thes
MAJOR breakthroughI deleted all :updatemodechange: and now logging works again !, but of-course now there are other issues since the menu is not synchronized anymore.
Logging now also starts instantly after pressing the log, the button is red and logging starts without any delay.
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If I put back :updatemodechange: to #cmdSetup info or #cmdSetup selector then logging does not work anymore !!! These both invoke askMode !!!