With all the technical talk and descriptions you included in your post you should have known better or had an Axe to grind With Red Cat. While my 2 grandsons with their BlackOut SC have been punishing them since Christmas with minor issues expected from the pounding they get.
Sorry no sympathy here, many problems arise from neglect of maintenance needed after every run. Even the 10-year-old knows that.
Chassis after a clean run bumper repaired Bad battery replaced under warranty. Wow and just 2 months and constant runs. Did you get a Lemon ??