I have 2 forums: real one and for tests (exact mirror copy).
I don't know why, but after installing this extension on test forum with patch for 3.3.0 I have some strange bug. Some users couldn't login to forum anymore. And I can't understand why! Me, my wife can login with account with any rights (founder, fresh registered, regular user etc... ) from pc from home, from work and even from mobile phone so this is NOT IP access problem or user access rights. But 2 my friends can't login from anywhere with the same accounts. They just got error about sending forms data and I got only "client closed connection while waiting for request, client: CLIENT_IP , server: 0.0.0.0:443" in server logs. The only difference between 2 forums is this extension.
At first I could not understand what's happening. So I tried to re-copy again main forum to test. I made backup from test forum, remove all files and again copy all files from main forum. And by some miracle everything started to work fine and users could login to forum as always! I scratched my head... and installed this extension back. And this bug returned. I tried to disable extension and uninstall it, but this didn't helped at all - users couldn't login to forum. So I again remove all files and copy files from real one - and again all working fine.
Do you have any idea what's happening?