garbled statusline in Big Sur

[arjanvandervelde (Arjan van der Velde)]

Hi!

I'm running into a strange issue with GNU screen built on Big Sur (intel). For some reason it does not correctly show the statusline. A binary compiled on last MacOS before Big Sur (same macports commit) works fine. I'm using the following screenrc:

startup_message off
mousetrack on
defmousetrack on
logfile /Users/vanderva/log/screenlogs/screenlog.%n
shell -/bin/bash
shelltitle shell
hardstatus on
hardstatus alwayslastline '%{= kK}[ %{G}%H %{K}][ %{G}%h %{K}][ %= %{= kw}%?%-Lw%?%{B}(%{W}%n*%f %t%?(%u)%?%{B})%{w}%?%+Lw%?%?%= %{K}%{B} %{w} ][ %l ][ %d %M %c ]%{K}'
defutf8 on
defscrollback 99999
msgwait 3
deflog on
logtstamp on
logtstamp after 3600
screen -t "mac" 0
log on
bind '+' resize
caption string "%?%F%{.R.}%?%3n %t%? [%h]%?"
layout save default
altscreen on
vbell off

see screenshots attached.