[Bug] "Use Flat Base for Floor Checks" Vibrates

I’m sorry if I am misunderstanding, but I just to clarify the repro steps:

  • Create 2 BSP boxes
  • Stack one on top of the other
  • Create stairs high enough to jump on top
  • Enable “Use Flat Base for Floor Checks”
  • Climb up the stairs and jump onto the boxes

I’m unsure what you mean by, “now put the grid at 1 and make a curb/stair of 2 units in the grid(moving the top cube)”, I assume it’s step 3.