A lot of Scorpion deaths....Why???

Is it true that young scorpions (first few instars) and ones that are sexually immature have a high rate of mortality?

I have had 3 Babycrus jacksoni, 1 Centruroides guanensis, and 2 Tityus magnimanus die on me in the last week or so.

Is there something I am doing wrong? I gave them all proper heat and humidty, and were feeding well. One of my other Tityus just molted fine. I gave them all vertical pieces of wood to climb and assist with molting.

Any thoughts?

You know sometimes we do everything right and they still don't make. No rhyme or reason. Do you live in a home or an apartment? Sometimes apartment management may spray pestisides without you knowing or just spraying the grounds and it penatrates yours
Sorry for your loss!