Unfortunately that sounds like the material is breaking down. It can happen if it was stored near something volatile that attacks the material or if it was wrapped in something that was breaking down and emitting gasses. If that's the case you may not be salvageable but you might try contacting the manufacture because it's possible they had a bad run of chemistry when it was made.
We have a problem like that with our dilators. Some of the girls like to use oil as a lubricant instead of a product like KY jelly. The oil will attack the material in the dilator. If you want to use oil, you need to protect it with a condom to prevent the oil from attacking the material.
