Hi Ted,
I’m sorry for the late reply, I’ve been away from computer for the past few days.
Here’s are the info including a screen grab of the interface.
After Effects CS6, Running On OS X Version 10.9.5:
Processor 3.4 GHz Intel Core i7:
Memory. 24 GB 1600 MHz DDR3
THIS THE FRAME BEFORE THE DISAPPEARANCE: 
THIS IS THE DISAPPEARED FRAME: 
AND HERE IS THE NEXT FRAME WHERE IT APPEARS AGAIN: 
In my original post I had stated that there were two scenes where the problem occurs, at the time of posting this one of them seems to be working fine with no disappearing frame.
Thank You,
Kings.