Currently, I am utilizing the collapse feature of Bootstrap 4.0.0 to show and hide a bootstrap "row". Within this row are four columns - "col-md-3" - containing buttons. The layout of this row is exactly as I desire until I include the "collapse" class, at which point all the columns within the row start stacking like block elements.
Is this issue a known limitation, where complex elements or rows cannot be collapsed?
Displayed below are two screenshots illustrating the layout before and after the collapse effect: Before