Are you using Malwarebytes Premium on your server where your backend is ?
Because today I discovered that latest builds of Malwarebytes Premium is causing periodic freezes in PVR's of Live TV and recordings of DVBLink/TVMosaic in MrMC and Kodi, for more than a week now.
Was on holiday last week so I just noticed with my recordings of last week. I suspect that it will affect other backends as well.
Workaround now is to exclude your recordings folder and DVBLogic Program Files (x86) and ProgramData folder in Malwarebytes if you are using the Windows platform.
https://forums.malwarebytes.com/topic/2 ... rotection/
https://forum.tv-mosaic.com/viewtopic.php?f=16&t=1259