Tvheadend

I am using an m3u to receive some streams and I have mapped the EPG Grabber to some channels. Unfortunately, even though I disabled "Automatically name from network:" and "Automatically map EPG source:" aswell as "Channel update options:" (on the EPG Item) the name of the channel is being changed on every restart to the name from the EPG. I have made sure the name is written properly in the channel's config file on shutdown, so it's something during loading that overwrites the channel name with the one from the EPG