Steps to reproduce:

1. Update zabbix-web and zabbix-web-musql over the version 6.0.31

Result:
Not see all the triggers in the "Problems by severity" dashboard. Seems to get only last day alerts

Expected:
See all the triggers in the "Problems by severity" dashboard with no limit in time

This server manage over 700 devices and 100 Host Groups. In my tests, if I create a "Problems by Severity" dashboard with only 80 Host Groups more alerts are displayed, but not all. Reducing the selection to 60 Host Groups shows even more alerts, but still not sure that are all of them

If i select all the 100+ groups i notice that seems to be displayed only the last day alerts