Juvenile Asian forest not eating?

Hello

A few weeks ago I got a juvenile Asian forest scorpion, he/she was pretty plump so I figured it was just fed and any of my feeding attempts would result in it not being hungry. However, still I have yet to see it eat? Any feeding attemp it ignores the prey (small dubia roaches) and it's looking less plump than before. I've left a couple in there just incase and I'm assuming it's eaten them since it's still alive but I'm just a bit confused as to why my feeding attempts aren't working? Any help is appreciated!