I have a colony with two queens. It has been that was for all of this
month.  There is some sealed brood with a not so good pattern, in the
lower box. The upper box has much empty comb and one frame of eggs.
Today we found a queen in each box.  Of course this is a mother-daughter
queen situation.

The question is: is there any problem with the fact that this colony has
the queen mum still in existence four weeks after the first time we
discovered her?

Is this a detriment to the colony ?   It is not a strong colony.

-Rob