I have a problem opening notifications under reports in my frontend on may two environment's.

First environment:

OS:

CentOS Linux release 7.9.2009 (Core)

Zabbix versions:

zabbix-apache-conf-scl-5.0.21-1.el7.noarch
zabbix-release-5.0-1.el7.noarch
zabbix-web-5.0.21-1.el7.noarch
zabbix-web-pgsql-scl-5.0.21-1.el7.noarch
zabbix-agent-5.0.21-1.el7.x86_64
zabbix-web-deps-scl-5.0.21-1.el7.noarch
zabbix-sender-5.0.21-1.el7.x86_64

Error in log

[Tue Aug 22 14:36:49.758701 2023] [proxy_fcgi:error] [pid 27040] [client 10.226.24.50:50611] AH01071: Got error 'PHP message: PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 4096 bytes) in /usr/share/zabbix/include/db.inc.php on line 403\n', referer: https://zabbix-web.mbu.local/zabbix/zabbix.php?action=dashboard.view

Setting in /etc/php.ini did not resolve the problem

memory_limit = 1024M

Second environment:

OS:

Red Hat Enterprise Linux release 9.2 (Plow)

Zabbix versions:

zabbix-release-6.0-4.el9.noarch
zabbix-web-6.0.19-release1.el9.noarch
zabbix-web-deps-6.0.19-release1.el9.noarch
zabbix-web-pgsql-6.0.19-release1.el9.noarch
zabbix-agent-6.0.19-release1.el9.x86_64
zabbix-server-pgsql-6.0.19-release1.el9.x86_64
zabbix-apache-conf-6.0.19-release1.el9.noarch
zabbix-sender-6.0.19-release1.el9.x86_64
zabbix-sql-scripts-6.0.19-release1.el9.noarch

Error in log:

[Tue Aug 22 15:21:36.425738 2023] [proxy_fcgi:error] [pid 110579:tid 110753] [client 10.226.24.50:60198] AH01071: Got error 'PHP message: PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) in /usr/share/zabbix/include/db.inc.php on line 439PHP message: PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 20480 bytes) in /usr/share/zabbix/include/func.inc.php on line 1197', referer: https://10.228.6.123/zabbix/toptriggers.php

Setting in /etc/php.ini did not resolve the problem:

memory_limit = 4096M

If I login as a user with low privileges the notifications page opens promptly and without errors.

The same problem was already reported here:

https://support.zabbix.com/browse/ZBX-19436?jql=text%20~%20%22report4.php%22

but suggested resolution of setting a higher memory limit in php.ini conf does not resolve my problem, so is this a problem in the code or a configuration issue?

Can you help me resolve this problem?