DuplicatiServer - high CPU usage when nothing happens - mono


I’m running Duplicati - on mono using Docker on ARM based Odroid HC1. I’ve only single backup scheduled and it happens during the night once a two days, but when I run ‘htop’ I see that the Duplicati.Server.exe process is working constantly taking one CPU core.
When I check live logs from web panel there is nothing happening. How can I help solving this issue?

Might be this issue: