Not fixed for me either. Watching episode 4 of Wild Wild Country, cut out 1 min 38 secs before the end. This is the first time (for me) that it's occurred on anything other than the opening episode of a series.
One other oddity. After watching episode 4 my next episode was, apparently, episode 6, completely skipping episode 5! It has now corrected itself.
We have the exact same problem and enjoyed the whole evening watching programmes apart from the last 1min 40 secs. Checked and it happened to Modern Family, Schitts Creek and Friday Night Dinner. Tried signing in / out of Netflix, tried rebooting the 360 box (and unplugging and discharging the remnant power!), tried resetting the modem / route node system - several times. Spoke with Netflix - they have excalated (but what does that mean!?)
Sounds like a worsening problem with Virgin 360 and Netflix.