Dear Maintainer, I tried to start looking at the given backtrace, but could not find the winbind-dbgsym packages for 2:4.9.5+dfsg-5+deb10u1 like they are availabe for 2:4.9.5+dfsg-5. At least apt did not find it in buster-proposed-updates-debug and at snapshot.debian.org they are also not listed. Is there a source known for the dbgsym packages?
Kind regards, Bernhard