I've finally got a chance to fly this plane, all I can say is wow. 

 

Interesting problem though, I got that master caution bug when starting the second engine, but I did not use the C/D panel state. In fact the first thing I did with the plane was to load in the default state with engines running, and shut everything down by following the FCOM procedures through the Securing procedure. I saved a panel state, and set that as the startup state and always start from that. The strangest part of it is in the multiple flights I've done, it has only happened a couple times, and most recently I was accidentally able to make it go away because I didn't turn on the center fuel pumps before starting, and got an actual master caution and EICAS caution for that after the start was complete. When I clicked the caution button, it extingushed, however later in the flight the crew response system activated and since then the caution will not extinguish. 

 

 

When I clicked the caution button, it extingushed, however later in the flight the crew response system activated and since then the caution will not extinguish. 

 

Did you satisfy the crew alert requirements by interacting with the aircraft?

+1:

 

Resetting the Master Caution does not qualify for that interaction - it takes a different action of some kind to accomplish that.

Did you satisfy the crew alert requirements by interacting with the aircraft?

 

Yes, the Eicas message, and the red warning went away but the caution remains.

I am also experiencing this problem with the newest version.

I am also experiencing this problem with the newest version.

 

This isn't a bug. Please see the intro manual, specifically the entry about the crew alertness monitor.