One of my new shrimp died! Please help

I got about a dozen neocaridina shrimp two days ago, added them to my cycled 5 gallon (slow drip acclimated) and they have been doing just fine!

I came home from class/lunch and I found one of my shrimp on the bottom of the tank dead and turned orange??? Does anyone know why it may have died? No others are dead, and my water perimeters are fine, I just tested them.

I'm so scared my others might die. I don't know if I did something wrong or what😭 I feel awful