Disconnected devices are staying on my list of connected devices

I have three (at least, just sure about three) devices that are no longer on my network, but are persisting on the app connected devices list. They are not in the "Recently on your network section" - they are in the top section of current connected devices. 

They include: 

 - Amcrest POE camera that is sitting in a box on my kitchen table

 - Blue Iris server that was running on a laptop - no longer running on it

 - Another POE camera that is also sitting in a box on my kitchen table 

May be more, those were the obvious ones. I force-closed and restarted the app and the "ghost" devices persist on the connected device list.

Is there a way to ensure that devices move to the "recently connected" list when they are removed from my network? 

Is this a known issue w/the devices list that is being worked on?

Thanks.