Hey rayonefilim! Sorry to hear that this happens to your character at the start of the match. Would you kindly provide footage of this? Are you playing on mouse & keyboard or controller?
I have a few troubleshooting steps to try.
1. Temporarily unplug any USB device connected to your PC that isn't your mouse & keyboard.
2. Using USB ports that is on the back of your PC.
3. Temporarily disable any programs that are not associated with playing the game with Task Manager.
4. Update GPU driver
5. Borrow another mouse/keyboard
Let me know if this helps resolves your issue.