Sometimes the audio is invisible; save and reload usually fixes problem

Good day, all. I'm the chief engineer for a radio station group, and our production room computer is having an odd issue. I believe the audio playback and .vis file get corrupted relative to one another, the result is that the playback cursor will be over a blank section of the visible waveform, yet audio is playing. The problem will sometimes manifest as a visible waveform with audio displaced in time, or no audio. 

It's a Win7 Pro machine, 32 gB ram, 1TB drive, ver {audition CC build 11.1.1.3}

I managed to reproduce the error by recording a short test bit (15 sec or so) and doing multiple operations on it- reverse, reverberate, compression, echo. At this point, I was seeing the symptoms described above. I can attach the .wav and .vis file if anyone wants to see them.

Thanks.

Jim Frank

Chief Engineer

CCR IV LLC