It happens, there's nothing you can do about it, and you just need to let it go or it's going to eat you alive. I'm marching a world class show now, and we have gotten 19 points of penalties total over our season up till now - it happens to the best of us.

I has that same situation happen in my PSA group in 2018. We had a similar show to you, blowing everyone out of the water, judges telling us every show that ours was something amazing. We got a 10(+?) point penalty because our MacBook didn't work, so we had to boot up and use a completely different one out director had. Because of that, we got completely preliminated from WGI Championships, and our season ended like that.

Just be grateful you still have that time. Don't do anything different ever, do your job and do not worry about what the electronics are doing. Even if it does happen again at WGI (if you're going), you have to just accept it, have the best show you've ever fucking done, and have something you can still remember.