Air Pockets in Wax and Splitting/Canyon Formation

[TheCandleManCan]

I am Making a Beeswax candle for my family and friends and i am using a standard square like Jar but i have run into a serious problem! The candle does not burn properly and it looks terrible from the above perspective where you light it. There is a huge crack see image below along the sides of the Jar, but not touching the glass. Usually they are only cracks and there is no pockets inside the actual Jar, but this time there was and it was dead center, kind of like a sink hole so to speak. So when i lit the candle to test it out, it well collapsed in within 30 minutes. Its almost like it was missing an ounce of wax out of 12! If anyone knows how to prevent this using only BeesWax or Natural Products i would greatly appreciate it. I'm trying to just get into the Hobby for myself and my family. Thank you ahead of time guys!
~ See attachment below for picture of whats been happening ~

 

[debra062013]

See here http://www.soapmakingforum.com/showthread.php?t=46997