Multiple instances of same TV channel show up in scan

[djsinfl]

I have 2 tuner cards in my HTPC - 1 is single channel and 1 is dual tuner. I scan channels with the single channel tuner card and after re-scan (due to FCC repack,) I have 5 listings for 11.1 (CBS) and 3 or 4 for 26.1 (ABC.) 

Using NextPVR as backend for KODI on Windows 10. I have issues getting the recordings to complete successfully on these 2 channels. I have created a group with only the instances of the channels that actually have signal for recording purposes, but I still get sporadic failed recordings on only these 2 channels, but no others.

I am loathe to reinvent the wheel and re-scan again. I suspect that NextPVR is attempting to record scheduled shows on these 2 networks from non-functioning instances of those channels that seem to reappear despite my having changed channel names/numbers, etc...

Anyone having suggestions will be appreciated.

[Graham]

I have 2 tuner cards in my HTPC - 1 is single channel and 1 is dual tuner. I scan channels with the single channel tuner card and after re-scan (due to FCC repack,) I have 5 listings for 11.1 (CBS) and 3 or 4 for 26.1 (ABC.)

NextPVR Server does not delete the "old" versions of a channel when the channel moves to a new frequency.  The "new" versions of the channel are added.  It is likely that the quickest and easiest way to get sorted is to delete all entries, both old and new, for the two offending channels and then rescan.

You can delete channels in Settings -> Channels ... tick the box to the left of the channels to be deleted and then click the bin toward the top right.
.