Can Not Add New Montage Section Name to a Montage on a Mac

-Section Name shows up on Windows and not Mac
-Does not occur in 4.17.2

Currently waiting to test in 4.19

1. Open a Third Person template project
2. Create a Anim Montage using the UE4_Mannequin_Skeleton
3. Open the newly created Montage and drag any animation sequence into the Montage Group
4. Center click/click with 2 fingers to bring up the Sections menu
5. Select New Montage Section

Expected: The Section Name box appears where the user can then type in a name for the Montage Section
Result: No Section Name box appears but instead a singular pixel of a different color appears about where the Section Name box would be