Critters are scalded by rocket exhaust in the critter cargo bay and biological cargo bay, possibly killing them

Same thing happening to me. It's not even the heat, as the cargo bay is on top of the rocket. However, the critter is already dead.

 

I tried many things, like reconstructing the rocket platform, or even changing the cargo bay module position, nothing worked... I also got so frustrated, as it would be my first tamed gassy moo