When you crashed and destroyed two props I suspect the prop locking tabs stayed inside the motor. This will/can cause motor to lock up and may cause a "flip" to occur when on prop ceases mid flight.Hello,
Sorry about the bad luck. I've observed in many posts here that when something like this happens, just call DJI Tech support. Don't be upset with them but explain what happened. They will have you upload the data the drone collects for the flights. They can extract what happened to the drone and if they see a drone fault in that data, they will replace the drone without using your Care Refresh. Check it out.