Lately we've upgrade our orchestrator instance to ubuntu18 with version 3.1.4
since then we experience a lot of failed checked to the backends which getting sorted out in one of the next checks.
the backends are up and the failures of the checks seems random.
this creates a-lot of confusion because checking the ui makes it impossible to know what is the status of the clusters

How can we debug it further to understand why the checks are failing?
attached orchestrator conf (user and pass removed)
orc.conf.txt

Thanks!