while this is not an issue with these bees, on several occasions with the ones I've had previously, on plasticell, they drew comb off the top bar without attaching it to the foundation one sided comb, and drew it out all the way down to the bottom bar, finally attaching it to the foundation but it took months, the Queen did lay eggs in it. but there was that space between the back of the cmb and the foundation lol probably was good clustering space. but I would think ample proof for the bees really do not like plastic.
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