You said..."nobody mentioned anything i was doing wrong"...I asked you if you were keeping more than one together and you said..."I know there have been allot of threads about keeping chameleons together and really dont want to go there in this thread"...so I didn't pursue it even though I had already suggested that it wasn't a good idea...and I still feel that it may have played a part in your chameleons' problems....so here is some information (mostly from well-known sources)...
Keeping chameleons in the same cage...
When chameleons are in the wild and one encounters another it has the option of moving away from it....when they are in captivity, unless the cage is huge, they can not move far enough away from each other so there is a "background" stress there all the time. It won't be apparent all the time...but it will eventually lower the immune system of one or both or all of them and lead to problems.
"The presence of another chameleon in the same cage or within sight can be very stressful and makes the chameleon more prone to illness."...
http://www.peteducation.com/article.cfm?c=17+2211&aid=2363
The whole article is worth reading...
"In captivity, the results of co-habitation usually end up with a stunted, poor health, or dead chameleon. The reason why there is any debate at all about this issue is the combination of a strong innate desire in human beings to group animals together and the fact that health issues related to co-habitation usually manifest themselves over time and indirectly. This makes the official cause of death something other than co-habitation. And the problems become noticeable to the keeper long after the chameleons have been together thus, in the keepers mind, ruling out co-habitation as a source of trouble."...and...""Well, I've kept my chameleons together with no problem!" They can say that because no one can see a depressed immune system! "...
http://www.chameleonnews.com/?page=article&id=66
"The presence of another chameleon in the same cage or sight of another chameleon in another cage may cause extreme stress and predispose them to illness."...
http://www.exoticpetvet.com/breeds/chameleons.htm
Stress can reduce calcium absorption...
"
Stress and old age lower calcium absorption."...
http://www.chameleonnews.com/?page=article&id=96
An autopsy should give you some indication of what was wrong...but as one of the sites above said it might make it look like the official cause of death is something other than co-habitation....and maybe it was.
I'm sorry that you lost your chameleons. I hope things will go better with any of the babies that hatch.