Indented eye cap...are you kidding me!?

Ok so i get home today and the 2 day waiting period after feeding is up and i start handling my snakes when i notice my male Mojave has (for the first time ever in my history keeping BP) an indented eye cap! I freaked out, i know what was the cause but im so anal about the humidity and temps in my tubs that idk how this could happen to me -__- does this randomly happen to any of your snakes? I mean not even when i had my first two snakes in tanks did this happen to me!

My cages stay at 60% humidity 24/7, and it has happened to me a few times. Just soak the snake in warm water (water temp in the mid 80's) for 20-30 minutes.

Well i put the humidity at 70%+ & it already looks better but ugh it's frustrating!