Pressing 2 keys the same time but does not update (2D PlayerController a and d for walk)

Hello,
I'm pretty new to Unity so I watched up videos where people developed a playerController to move the Player around (2D Platformer Walk left|right|jump). So the movement actually works. When I press "a" the player moves left and when i press "d" the player moves right. But when I press "d" first so the player moves right and then press "a" while keep pressing "d", the new key ("a") isn't recognized. When I do the opposite ("a" first than "d") it does recognize the newest key. I watched up a few topics about this issue on the Internet but they call it a bug from Unity.

Basic Code from the FixedUpdate() Method:

Code (CSharp):

1.  void FixedUpdate()
2.     {
3.         isGrounded = Physics2D.OverlapCircle(groundCheck.position, checkRadius, ground);
4.  
5.         if (Input.GetKey("d"))
6.         {
7.             rb2d.velocity = new Vector2(runSpeed, rb2d.velocity.y);
8.         }
9.         else if (Input.GetKey("a"))
10.         {
11.             rb2d.velocity = new Vector2(-runSpeed, rb2d.velocity.y);
12.         }

Would be great if you can tell me how to solve this issue! Best regards Max

 

As long as you're holding D with the code above, the else on line 9 will never fire, so it never even checks for A

Remove the else, but remember, A will now always win.

Define what you want to happen when both A and D are pressed. Latest? Neither? First?

Every one requires a different way of coding.