ILO Amplifier Pack sends alert not correctly

[bohdan1]

I have just configured alerts in Amplifier Pack. I configured through IFTTT to Telegram messages. Test alerts working properly.
Amplifier sends me alerts, but this alerts not from all servers. From some servers, I receive alerts, from another servers I didn't receive.

Yesterday, I powered off two servers, but I didn't get notifications in telegram.

And in Managed Server Alerts I didn't get any record about these servers powered off.
On Wednesday I have 3 servers, that are not reachable by the net from amplifier, no record about this fault. Configured all types of alerts. 


I think the problem in amplifier, when it scans all servers(I set an hour interval) it shows that the server isn't reachable, but in Managed Server Alerts it didn't come up.

Today I have a couple dozen servers not reachable by the net, but in Managed Server Alerts and my telegram silent. 
This is normal?