June milne ...
I found it best for me to leave my buttercream to firm over night before putting fondant on. It helps stop the weight of the fondant putting pressure on your cake causing it to bulge. Do you have a cooler room you could put it in (not fridge) that would help the fondant to firm and set better.
© 2011-2017 CakesDecor.com. All Rights Reserved.
DISCLAIMER: Any posts on CakesDecor.com (CD) are posted by individuals acting in their own right and do not necessarily reflect the views of CD. CD will not be held liable for the actions of any user.