Adding this to config file is supposed to avoid it
$cfg['Servers'][$i]['LoginCookieValidity'] = 2592000;
Now checking cookies I can see the one named pmaUser-1 expires on March 21, that’s correct.
However sessions keep expiring after 1440 seconds.
I know it’s not PHP, I have many other sites running in the same server and their sessions last forever.
Any idea what’s going on?