Thanks for the suggestion.
I tried cycling from NV OFF to Auto (menu or moon button) and it worked fine on the camera activating color NV.
What I am seeing now is this scenario:
NV mode: Auto
IR Night Conditions: Dusk or Dark
Camera Target: points toward garage ground location (e.g. concrete ground).
Change: Ambient light level rises from very low-light condition to daytime indoor light level (e.g. light coming thru’ from frosted glass paneling of garage door)
Problem: Camera stays in IR night mode (B/W) and does not switch back to color NV
If I switch NV mode to OFF and back to Auto mode manually thru’ the settings menu or the green moon button, the camera immediately switches to Color mode.