Yes, due to this I noticed one of the developers has been doing some bugfixing, which is the version you are currently using, this version hasnt been updated in the official site.
Got the same problem as everyone else in MPC-HC, but figured out and now is working, dunno if I could post the fix here.P.S. All worked fine before login was required. BS player is quite old, MPC was also so I updated to latest version but it doesn't help.