Shorewall module buttons not working

Hello

Shorewall module buttons (Apply/ Refresh/Clear/Stop, etc…) not working for me since last webmin/virtualmin update.

Shoreline Firewall
Shorewall version 5.0.15.6

Running Virtualim GPL

Operating system Debian Linux 9
Linux 4.9.0-4-amd64 on x86_64
Perl version 5.024001
Path to Perl /usr/bin/perl
Apache version 2.4.25
PHP versions 7.0.19
Webalizer version 2.23-08
Logrotate version 3.11.0
MySQL version 10.1.26-MariaDB-0+deb9u1

Thks

Same effect here. Seems to be a problem with Authentic Theme though. Upon changing the theme to Gray Framed Theme the buttons are working again