According to this
Bugzilla forum post, Apple has fixed the problem in macOS 15.2:
Chris Zim
Comment 13 • 4 months ago
Just tried SM 2.53.19 on OSX 15.2 (24C101) with Darwin 24.2 and can confirm that this issue is no longer present.
Have you updated Sequoia to 15.
2?
An aside: I don't think you need to type the "% " (the
percent sign and a
space) for that command. In my Terminal screen, those automatically appear as the prompt from zsh awaiting my input.
Another aside (the other side?

): not sure you actually switched to zsh. You report seeing "-bash" in your output. Did "bash" also appear in the window title bar?
When you open a Terminal window, it should include the name of the shell you are using (
bash,
zsh,
csh,
tsch, etc.). Apple's Terminal will also show your Admin name and the boot drive name in the windows title bar. That bar will also show the size of the window, assuming you have that selected in its Settings.
My prompt line shows:"
xairbusdriver@New-iMac ~ % []". Note the space on either side of the "
~" and the "
%". The "
[]" is my attempt to show the
blinking red block cursor where my typing will appear. That cursor is controlled by what display choice is selected in the left-hand column of the Settings->
Profiles->
Text tab>"Cursor" (Block, Underline or Vertical Bar, a "Blink" checkbox and a color selector).