Calendar shows twice, one with leading zero

I have all events duplicated for me in the calendar, and two sets show up, one with leading zero, one without. I am the cubmaster of the unit, my son is den chief for the unit, I have two scouts in the unit - so there are a few ways this could be happening. Other committee members do not have the problem.

It is a known issue and it is your youth that is a DC that causes it

Just ignore this then? Is it going to break anything if I book on the wrong calendar?

No it SEEMS to write to the same calendar. It just shows twice if you have a child that is DC in the same unit. It is being investigated

Perfect, thank you. Appreciate your quick response!