HDMI Dropping: BenQ x500i, Onkyo TX-NR676, Blue Rigger 40ft HDMI

This is driving me nuts. My HDMI signal just drops randomnly and most of the time it picks back up almost immediate, but sometimes it won't even find the signal again. I've troubleshot etc and can't get it fixed.

Settings and/or troubleshooting steps:

• Projector is on HDMI equalizer 2 because had white specs all over output initially.
• Tried different physical HDMI ports
• HDMI claims 18gbs and Im on 4k @ 60
• I tried switching to 1080p from 4k for possible bandwidth issues
• I've tried toggling so many random settings
• Plz halp
• If I die 1 more time on a TFB: Khazan boss I'm gonna lose lol