AppleScript Keystroke does not work correctly after migrating to M2

Hi,

I've got a new MacBook Air M2 two weeks ago and have migrated my MacBook Pro 2019 to the new MacBook Air M2. Both MacBooks are on Venture 13.1.

I'm using a small AppleScript as Service with a shortcut SHIFT-CMD-D to insert the current date and time in Notes.

on run {input, parameters}
	set dateString to do shell script "date +'%Y-%m-%d %k:%M'"
	tell application "System Events"
		keystroke dateString
	end tell
	return input
end run

That has inserted this line in the past and is still working on the MacBook Pro:

2023-01-11  8:00

On the MacBook Air M2 it add a dot behind the day and if you press SHIFT-CMD-D more then once it starts to reformat the entire text instead of adding another date / time string.

2023-01-11. 8:00

The reformat also happens sometimes if you press SHIFT-CMD-D the first time in a note.

As said, exactly the same AppleScript still works with no problem one the MacBook Pro in the same note in Notes.

I hope that someone has an idea how to fix it, as I'm suing this each day when making notes in meetings.

Regards, Carsten