Am 11.12.2020 um 16:27 schrieb Lars Ingebrigtsen <larsi@gnus.org>:

But you said you were running with "emacs -Q"? So you should have none
of those settings in effect...

Right! I just mentioned them for completeness – uselessly!

Without prompt settings in ~/.tcshrc I could reproduce the effect when the shell buffer was either on the left or on the right side. I did not succeed when it was the only buffer:

--
Greetings

Pete

The human animal differs from the lesser primates in his passion for lists of "Ten Best."
– H. Allen Smith