That has not been a default skin for Kodi in many years and not something that ships with OSMC. I would try switching to Estuary or the OSMC skin to see if that clears up part of your problem. Also check your display settings to make sure you are set to 1080p resolution and not 1080i. The logs you provide were Kodi logs only so they are only providing partial information. Full/all logs would be more helpful. As for the library scanning issue I think you may have an issue with name resolution on your network. I would try setting your sources to an IP address instead of a name or else add a path substitution to accomplish the same thing on your current library.