I have this problem immediately after updating.
Technical support for a few days could not tell the reason,
As a result, said I need a mono config file.
Change by 40 nodah, me and so these days it all strained.
Technical support does everything slowly.
And apparently not very willing to help.
I was told that I have one such problem.
Was shut off time of 40 nodes. over 500 game servers.
I did not bother to search patches.
Just waive most of the licenses, and turn to the other panel.
And I wish you patience, and good luck in this endeavor.