Hello Leonid, thanks for your feedback.

Any free app. I made a video capture to illustrate the problem but can't paste the link here (???) I'll try to send you a PM.

Today I cleared anything from the server. Did a new installation with softaculous. Created a new key and secret and bound it.

Btw in the Dashboard I got a notification that an update is available 9.0.0-RC11 I approved it it looks like it's working (message saying "Site will be upgraded within a minute") after a few minutes nothing changed but the update still appears on the dashboard and the version is still 9.0.0-RC10.