Hi
Had this happen before and found series link and accurate recording so unreliable went back to just padding recordings many many months ago (no problem we got Silent Witness, all of it). Couldn't tell you the last time something didn't record in its entirety since we've been in control, and everyone is much happier, except when the unit stops responding for seconds at at time
Accurate recording type signalling is nothing new, VHS video recorders had PDC years ago and that did the same thing more often than not, started recording then stopped after a few minutes. So in 15 years they have made absolutely no progress whatsoever!
Regards
Phil