Missing channels in Program Guide

Hi All,

Im missing some channels in my Program Guide, but they are set at “Manage channels”
My program guide is looking like this:

And at manage channels i set the correct data:

As you can see channels 13, 14 and 16 are missing (channel 11 does not exist), so i cannot watch them in Plex unfortunately.
And from those 3 missing, channel 14 is the most important (formula1 is on it! :P)

Two questions:

  1. Is it possible to still watch channels without EPG data in Plex? Because the channels are working on the tuner. (if not; will this be build in a future version?)
  2. Do i need to fill the GraceNote EPG data form for this? (liek reported: https://forums.plex.tv/discussion/281569/reporting-gracenote-epg-data-issues#latest)

Thanks!