You may have a problem with ESD, happens a lot with v5. I’d recommend looking up some topics on the forums titled around brain port burnout/broken. There are also certain, let’s call it accessories to help prevent ESD, V5 ESD Protection Board Revision 3 (Save your V5 Ports!) but it is at the time of writing unknown if this will be legal to have during competitions. (Currently QnA Question 903)