BoxCollider2D.Cast does not detect that it hits an EdgeCollider2D at some points of the EdgeCollider2D

To reproduce:
1. Open the project attached by the user
2. Enter Play mode
After a few seconds, notice some red lines appearing. These lines appear when BoxCollider2D.Cast doesn't hit anything.

Expected: BoxCollider2D.Cast detects hits at every point of EdgeCollider2D
Actual: BoxCollider2D.Cast does not detect that it hits an EdgeCollider2D at some points of the EdgeCollider2D

Reproduced on: 5.5.0b5, 5.4.1p1