Filesystem Backup Fails after Update to 2.013 on FreeBSD

SYSTEM INFORMATION
OS type and version FreeBSD 13.2-RELEASE p10
Webmin version 2.013

Just discovered that my backups through Webmin have been broken for a few days after I upgraded my package to 2.013.

Manually running a backup from the UI results in the following:

[28/Feb/2024:21:35:27 -0500] [192.168.0.2] /fsdump/backup.cgi : Perl execution failed : Cannot open a pty at /usr/local/lib/webmin/proc/proc-lib.pl line 266.

I’ve tried restarting Webmin and reinstalling the package.

Current version of Webmin is 2.105. 2.013 is quite old (it was released in January of 2023, so over a year ago).