I have incubated eggs of C. chamaeleo and veileds with moisture levels in the substrate higher than most people recommend and I have never had a good egg go moldy. Both are species that are somewhat related to dilepis...but I have never hatched dilepis eggs (never had any). This is not to say that mold can't be the result of too much moisture....its just my own experiences. You will see what I mean in the following sites.
I have never had a moldy/bad egg cause any problems for the good eggs when left in the same container....but I remove them well before the babies hatch sot that the babies won't get into it.
I don't want to steer you wrong...so you are going to have to make a decision ultimately for yourself. Here's some information about mold on eggs....
http://www.angelfire.com/fl/chameleons/veiled/veiled.html
"Wile using the "mold " word white mold showing on the eggs just after laying is usually a sign the eggs are infertile black or dark mold is usually a sign to much water used when you mixed your substrate together".
http://www.chameleonnews.com/year2003/mar2003/eggs/egg_incubation.html
"Mold is another problem. It is a sign that things are too wet inside the incubation chamber or that the egg is dead. I did have one egg that looked healthy all except for some mold starting on one side. I sprinkled athlete's foot power on it and the mold went away. The egg successfully hatched. Most of the time, the mold is merely what happens after the egg is dead."
The following are not for chameleon eggs, but many things in reptile eggs are the same....
Humidity...
http://www.esajournals.org/esaonline/?request=get-abstract&issn=0012-9658&volume=048&issue=01&page=0160
Healthy eggs generally do not mold...
http://cc.usu.edu/~jgjulander/Knobcarepage.html
Sorry I can't give you a definite answer. 
Hope you can solve the problem and that the eggs will survive.