I see what you're saying but I didn't have a problem with the TV Service, it was the client plug-in for MediaPortal.
I know, it was just an example.
But the upgrade issue seems limited to the Tv-Server/Client installer.
There was no case where i.e. Mediaportal.exe did not get upgraded so far.
Had the same thought, but when MP.exe is not running, then TvClientPlugin should not be used either.The only plug-in that I have activated which I didn't before was the power scheduler. Perhaps this interacts with the TV client in some way?