Can anyone please help me with my expanding foam issue? It keeps collapsing after I pour it in the mold. I thought it was the temperature/weather, but it's happened when it's hot, cool and freezing outside. I'm not mixing it or pouring it any differently than I used to. I'm not really sure what I'm doing wrong. :s I'm using the Monster Makers expanding foam.
Image ~ http://i.imgur.com/61xqJiI.jpg
Image ~ http://i.imgur.com/61xqJiI.jpg