The TPE journey check page shows some delays to services due to a points failure, but it doesn't specify where, and there are no line disruptions reported. Everything seems to be running OK through Sheffield and Chesterfield.
I'm following 1B83 on Traksy currently, which has just left Meadowhall 20 minutes late. To help recover time on this, TPE ran it fast between Grimsby and Doncaster, which helped it recover 13 minutes, and following a clear run, looks to be getting into Sheffield having recovered another 5 minutes.
EDIT: All this fast running is going to be pointless, as it will catch up with the stopper, and be unable to overtake until Hazel Grove or Stockport.