Issue: Moving over to Metricbeat Monitoring from the stack internal Monitoring tools and after an roughly 2 hours, the Logstash stats entirely drop out of the Monitoring app in Kibana. If I leaves the Monitoring tab open, the charts are empty of data. The logs are totally silent in regard to the failure. Nothing in Beats logs and nothing in Logstash logs.

In my lab setup I have one Metricbeat instance monitoring Kibana, Elasticsearch and Logstash. When Logstash stops showing up, it's the only monitoring module that stops / fails. Elasticsearch monitoring data is still coming in and so is Kibana monitoring data. To get Logstash information back into Monitoring, restarting the Metricbeat process is necessary. Restarting Logstash had no effect.

For confirmed bugs, please report:

• Version: 7.5.2
• Operating System: Ubuntu 18.04 LTS
• Discuss Forum URL: N/A
• Steps to Reproduce:

set up stack install of Elasticsearch (7.5.2 in my lab's case)
install and set up one instance of Metricbeat local to the node to monitor the components in the stack specifically Logstash
wait for Logstash to drop out of the Monitoring app in Kibana