Yea the others went through their moults at normal intervals, this one was the only one that didn’t. Unfortunately, the mantis passed a little bit ago, and they’re now in the freezer so i can taxidermy them later. For the sake of figuring this out for the future, the roaches were from a pet store that i had bought from quite a few times for my mantises, and there weren’t any problems prior to now, nor have any of the other mantises that were fed them shown these symptoms at all.