I have an ECE deployment including one cluster that seems to be working fine. I have used APIs to interact with the kibana instance for example using curl to upload an index template.
I tried to import a saved dashboard using curl, which gave me an error :504 Gateway Time-out
504 Gateway Time-out
The curl syntax has worked elsewhere but I tried doing the same from the Kibana UI in person and also got timeout behaviour.
I tried splitting the dashboard file into its component parts and uploading them one at a time, but even a small file gives the same timeout behaviour.
Could there be a reason the dashboard import is not working for me? How can I go about diagnosing what sounds like a load balancer / reverse proxy issue within ECE?