Dashboard ack fails

[cronuscronus]

Whenever I attempt to ack an alarm through the dashboard for an alert on a child node I receive the following error messages on the acknow.php page and the acknowledge fails.

* reset() [<a href='function.reset'>function.reset</a>]: Passed variable is not an array or object[/usr/share/zabbix_main/acknow.php:79]

* Undefined index: acknowledged[/usr/share/zabbix_main/acknow.php:80]

Any thoughts?

[cronuscronus]

Whenever I attempt to ack an alarm through the dashboard for an alert on a child node I receive the following error messages on the acknow.php page and the acknowledge fails.

* reset() [<a href='function.reset'>function.reset</a>]: Passed variable is not an array or object[/usr/share/zabbix_main/acknow.php:79]

* Undefined index: acknowledged[/usr/share/zabbix_main/acknow.php:80]

Any thoughts?

Keep in mind that this only occurs if I have "All" selected as the node. If I individually select a node I can then ack from the dashboard.

[manowar]

Can confirm I am seeing exactly the same behaviour.

[cbidwell]

What version of zabbix are you running? I'm currently running 1.8.2 and don't have this issue at all.

[Aly]

Problem already fixed in branches.

[Missbook]

I am having this problem when guests follow a link from email alerts.

reset() [<a href='function.reset'>function.reset</a>]: Passed variable is not an array or object[/opt/zabbix/html/acknow.php:77]
Undefined index: acknowledged[/opt/zabbix/html/acknow.php:78]

This is fine if you log in first. This is not on a distributed setup. This is 1.8.3.

Thank you.