Firewall blocks editing users

Hello,

I’m using WordPress Simple Firewall version 4.1.2, with WP 4.0, on a multisite install.

Whenever I try to edit a user the firewall blocks me :

WordPress Simple Firewall has blocked a page visit to your site.
Log details for this visitor are below:
- IP Address: XXX
- Page parameter failed firewall check. The offending parameter was "_wp_http_referer" with a value of "/wp-admin/network/user-edit.php?user_id=XXX&wp_http_referer=%2Fwp-admin%2Fnetwork%2Fusers.php".
- Firewall Trigger: WordPress Terms.
- Firewall Block Response: Visitor connection was killed with wp_die() and a message.
You can look up the offending IP Address here: http://ip-lookup.net/?ip=XXX

I can work around this by whitelisting my IP, but wondering if this is expected behaviour ?

Thanks,
Jack

https://wordpress.org/plugins/wp-simple-firewall/