Yes @zEitEr i think this issue come with new installation of directadmin after 1.643 because we used rspamd in other server before and no issue like this.
For installation and procedure i was check and make sure everything has no problem .
Have same problem , rspamd return zero scan , was try few time rebuild rspamd also rspamd_conf but result still same
Ps: just in scan/learn function its work for manual scanning
Hai fln , in 1.646 version when i was logging in chrome on my phone , a left menu or panel menu is missing / dissapear , but if switch to dekstop mode in chrome mobile, left menu show .
I believe it can 😊 , just take few minutes for doing an upgrade at least to 1.6.43 for latest rhel6 OS , of course this work for manual update only and not automatic update because new license key is different with your version DA 1.59.
I suggest try contact support first for safe procedure...
I have same issue too , even i closed firefox and opening again later in next 6 hour , session login still not destroy and i still can open control panel without login