Somehow, I’ve ‘hidden’ some devices (I think I pressed the ‘eyeball’ on the device listed in a room). If you look at my ‘Outside’ room you can see there are 2 hidden devices.
How do I get it back? I’ve looked everywhere I can think of, and I find no posts about it here either.
I had high hopes that that'd work, but I don't have the 'eyeball' on my screen, only the crossed-out 'eyeball' 
I had to tap on the crossed-out eyeball in order to reveal the hidden items. THEN you tap on those item’s crossed-out eyeballs and voila. Devices appear again!
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