I put on the Flow supers last weekend, both have brand new frames. I didn’t inspect today, but I opened the rear door, and found bees in the bottom channel of one of the frames.
I am pretty sure that I checked that all the frames were in the closed position, and I checked more than once.
I don’t have time today and is going to be difficult to inspect during this week (I’m away during daylight hours).
Any idea what the issue might be?