So yesterday I went to my first reptile convention. There we bought about 40 dubia roaches. We got back to my house I setup a cage pictures below and fed four to my chameleon. the rest I let roam free for breeding since I'm breeding dubia roaches now. this morning when I woke up I came downstairs to give my dubia roaches greens. when I looked inside I found one dubia roach that was pretty much Hollow. The rest of them seemed okay from what I saw but that one dubia roach was just gone. is there something I should be worried about like one of them is eating the others or do they just mulch and I should pick the up the shell and throw it away. Any insight would be great thank you.