astra 19.2e strange problem


hi all, I have an openbox v8s with astra 19.2e attached to it for euro channels.

I realised the other day that a few channels are not working, these include TF1 (france) and a few others. Upon doing a slight bit of kingofsat research - the ones that are blank/black screen are associated with transponder astra 1N.

All other transponders etc work fine, astra j/k/l associated channels work OK.

Done a rescan and tried to enter 1N positioning manually but to no avail.

What options do I have? could it be the dish and LNB? seems weird if so, as other channels are perfect.