Update to R18 and seeing some issues

Did not see anyone else post a thread about the new update R18 which was recently released.
The firmware installed fine but i'm having some minor issues which i'm not sure is the box or the firmware:

Sometimes when I restart the mag 254 box, the portal doesn't load all the way through.

I moved the mag to another TV and the video was fine but no sound,
I reset the mag but still no sound, finally had to swap hdmi cables and sound came back (same hdmi cable that worked previously)

Anyone else having minor issues with R18?