ok, I don’t have the web cam up and running right now. But what I have is this window with an old web cam image popping up every now and then, how do I remove this fine work photographic art? I think Ihave all the setting right.
in 10.12 s or t
control panel, web set up/view
and there you can untick to show that floating web cam image from the graph time cursor position (which you can now have working from the temp/hum graph (see under the setup, graph setup)
Found it ~ under web cam setup. nice idea having that option.
of course, I need a real nice camera , They tell me the security camera might work, but I don’t want to mess with that thing.
i really like this web cam image at time of day from mouse position over the graph
the graph shows a shower of rain…recorded…i move the mouse there, and then the web cam image for that time of day (i have it set to record every minute a time stamped file) is displayed, showing the rain shower approach then move away 
i even captured the setting morning moon too the other day 
I will have to dig the usb cam out of the closet when I get around to cleaning my software storage closet. It is scary in that thing, old stuff mostly.
But the camera idea is great.