I went to webmin->Backup Configuration files to make a backup of the webmin configuration. I "included in backup" '/etc/webmin/miniserv.conf' and '/etc/webmin/backup-config/*', in order to backup the backing up schedule and the changed webmin port.
However, when I restore this backup, it won't restore the changed webmin port nor the backup schedule. I opened the appropriate files and no changes have been made.
When I check "Just show what will be restored?" in the webmin restore section the appropriate files do get listed.
Please delete this, I posted it in the wrong section.
Same as https://sourceforge.net/p/webadmin/bugs/4545/