The modes are useless and should be disabled while the vertex(es) is(are) selected. The same behavior in Edit Collision and Edit RenderGeom modes.
I've checked it in 4.25.3. Probably, this bug exists for a long time.
The Rotation or Scaling mode can be used.
The Rotation and Scaling modes are disabled for the vertex selection.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-100093 in the post.