RVU and Sony XBR-65X900C trouble - DirecTV

I wanted to try the built-in Directv app (RVU) on my "Directv Ready" Sony TV. Overall it works OK (hard-wired internet connection via DECA adapter) EXCEPT for when watching a DVR recording and attempting to use the Fast-Forward or Skip Forward functions, which lock up then crash the TV (it reboots). My firmware is all up-to-date. Anyone else experiencing this? Is there a log or something i could forward for investigation? It is repeatable. I am now switching back to my Genie Mini (oh, I have the HR54 Genie).

This question, "RVU and Sony XBR-65X900C trouble," is about DirecTV channels, programming, equipment, and sports.