I had the same thing happen to my dubia colony when I got it. I figured it was overheat since when I unpacked them, the egg crates were soaking wet and there was a wet mush of dead roaches at the bottom of the box. Then I kept losing adult females, males and nymphs for about a week or so after. Usually 5 or so a day, slowly dropping to 2-3 a day. Now it seems fine after about 3 weeks(knock on wood). They did the same thing, spaz out and run frantic like they were confused, then lose motor skills, not be able to right themselves up, lethargic and then die. I never did figure out what was going on. All I did was clean the dead out daily and pray. I lost about half my colony order of 40 females, 15 males, 100 large nymphs and 500 mixed nymphs. But like I said, they seem ok now even though I do find a couple dead here and there but its adults so I figure those are just old age. Anyways good luck and hope you don't lose as many as I did.