Hi @Stepan_Ozernoy ----- I just checked our servers and it looks like the diagnostics report has not made it to us. I have re-enabled this feature in an attempt to refresh the transfer but I want to make sure I get a set of your Roon logs over to our tech asap.
In light of the above may I kindly ask you to please use the instructions found here to gather and send a set of your Roon logs from the device hosting your Roon core. You can provide a download link to access the logs in a PM addressed to me.
-Eric