Global Input Meter Glowing - No Sound From Track

[KendoMixes 5]

I'm not sure why this is happening (first time for me)... one of my tracks keeps cutting out - it's an audio file. I notice the Global Input Meter (whatever that is) is glowing. The only way to fix it is to close Calkewalk and then reopen the file. I under this may be some protection to protect feedback loops or something, but I don't understand why this is happening. I'm not recording anything... just mixing. I even disabled my input device in preferences.

Any suggestions on how to stop this?  Image attached

[CJ Jacobson 99]

When its glowing (enabled), it means audio is going through the Prochanel and processing the audio.

[KendoMixes 5]

well there's glowing yellow and then this more reddish.. and when it gets like this, nothing plays out of that track unless I turn off prochannel, OR shut down, restart. And also... it stays this color even when I'm not playing the mix... 

[57Gregy 558]

What is your latency at? When mixing, it's sometimes better to increase it.

[reginaldStjohn 206]

A glowing "red" would indicate clipping. I have had the prochannel clip and then just stay there and not produce any audio.  The usual culprit was the console emulator but I also saw it with the BrickWall limiter.  Try removing the prochannel modules and see if it works again.

[KendoMixes 5]

Perhaps it was a latency issue - haven't checked that yet. Certainly disabling the pro channel stack makes it come back, but then I don't have the EQ, compression etc I'm looking for. Hasn't happened recently but maybe I adjusted volume in the mix to reduce clipping. Will watch for it. Thanks for the guidance on what to look out for.