Checked release notes and looked through the forum...so far I've seen this twice on two different systems running 18.104.22.168. On a PtP call the home screen will overlay the far end video. The users have no way of changing this since all rooms are on control systems, remotes are not available, and transport controls are not built in to touchpanels. Only way to make it go away is backing out with remote. Although I'm going to upgrade these newly installed codecs and see if this resolves it, I'd like to know if anyone else has seen this or if it's a known issue.