EPG scan has no results for many channels

[Rockthisparty]

Hi!

I'm running NextPVR on a RPI4 / Raspian with a Hauppauge WinTV DualHD USB Tuner.

My Problem is, that EPG search / refresh does not give me results for many channels.

e.g. Correct results for "Das Erste HD", no results for "ZDF HD". I'm absolutely sure, that epg is transmitted for this station.

I did a complete new channel scan today, because I thought, there is something wrong with the channel list, but I didn't solve the problem. I think, the problem changed to other channels   

Perhaps a trace: Normally the popup dialog for "Update EPG" shows the frequencies actually being scanned. Now the dialog keeps showing "Checking for any broadcast DVB/ATSC EPG listings" ??

Thanks for any help!

Stefan

[sub]

If you're able to do a one minute capture of a full transport stream capture from one of the frequencies that often end up with no listings, and supply the file somewhere like onedrive or googledrive, I'll load it up in my signal generator and try it here.

Usually on Windows I'd suggested people use the eval version of TSCapture (https://tscapture.com) to do this. Not sure what the best way to do this on linux.

[Rockthisparty]

Thanks. I'll try to find a tool for this. I think, my problem is very similar to this:
https://forums.nextpvr.com/showthread.php?tid=61815

After posting my question I saw, that my recordings failed as well after epg scan was broken.