IP Whitelist without function/has no effect

So I’m running the latest Rocketchat version (snap), I have added CIDR noted IPs and regular IPs to the whitelist. Like:,

But still if I try to login with wrong password, it IP blocks me for some strange reason. The relay into the internal channel “failed login attempt” clearly shows the source IP that has been whitelisted.
The option seems to have no effect.
Also: How can I manually unblock a blocked IP? There seems to be no feature for that for some strange reason.