Monitoring issue

Hi there,

I'm facing an issue with monitoring. I setted up end december and it worked like a charm with metricbeat.
Now when i' going on the monitoring page in Kibana i get "No monitoring data found".

No idea why... Also i can't see anymore any monitoring indices. When i'm in the monitoring page, if I exit the setup mode and click on "overview" i get the following error : "Unable to find the cluster in the selected time range. UUID: undefined HTTP 404"

I'm on ELK 7.10, monioring was working for my 2 Elastic nodes, 1 Logstash and one Kibana...

Does anybody have an idea ?

Self-fixed it was due to that : https://github.com/elastic/elasticsearch/issues/65315