I've had all the problems posted here - Floods won't turn off, won't turn on, come on in daylight, etc.
I used business cards to build a shield, then a small cardboard box to shield the sensor from light. I've "reset" the darn thing more times than I can count.
There's 2 things I've found. #1 is don't use white business cards or white anything to create the shield. White REFLECTS light - might as well not be there.
#2 is the weird one. Create a macro to
scare
the floodcam into shutting itself off!
FloodCam is C1. C1-On triggers a very simple macro that has a 3-minute delay before issuing a C1-OFF command.
When the macro exists, the FloodCam shuts itself off at its own 1-minute setting. When I delete the macro, the FloodCam stays on until I manually shut it off. (the problem exists only when the Floods are on, during the day, I don't need the macro)
Unless the eventual C1-OFF command resets something every cycle, I have no reason or Thought as to why it works. - It just does. (I'm going to test triggering the macro with C1-OFF, delaying a bit, then issuing a C1-OFF - just for grins)
Update: Nope, changing the macro to trigger on C1-OFF didn't work - it stayed on for 20 min until I ran the macro manually. Then I reset the macro to trigger on C1-ON, and triggered the FloodCam. Per the Activity Monitor log, 43 seconds later, it shut itself off.