[LongMan]

It does play locally. The logs are here. https://paste.kodi.tv/egisatavot.kodi
 

• I played two episodes of Lost in Space via file menu (not added to library)
  • It show an error but the episodes played. (1x1 and 1x3. 1x2 did not play)
    
• I attempted to play the same two episodes imported from another Kodi installation.
  • It says that the item is no longer present.
    
  • I have been noticing that If I start the client after the server, the client does not see the server. I have to toggle UPnP off and on again before the clients sees it and initiates the sync. It is the same for initial discovery too.
    
• Finally, for completeness, I attempted to play two movies imported from Emby.
  • I didn't expect them to play but the log could be useful for comparison.
    

Hope that helps.