Draw debug points do not draw at the same sizes in Orthographic viewports as they do in Perspective viewports

With the Draw debug points node, the points do not draw at the same sizes in Orthographic viewports as they do in Perspective viewports. This issue does not appear to be a regression.

Versions Tested: Issue occurs in all versions tested
4.15.3 - CL: 3450819
4.16.3 - CL: 3561208
4.17.2 - CL: 3658906
4.18.0 - CL: 3709383

1. Create a new project (No template or starter content needed)
2. In the new level open the level blueprint > add a "draw debug point" node to an event begin play node
3. In the "Draw Debug Point" node set the size to 5,000 > set the color > Set the duration to 10,000
4. PIE (debug point should be very large)
5. Press f8 to no longer possess the pawn
6. Set the viewport to an orthographic view
   Result: The debug point is much smaller in this viewport than the perspective viewport
   Expected Result: The debug points are drawn at the same size