Blender 2.8 Transformation Constraint Problem I added transformation constraint to a cube and target was an-other's cylinder rotation but instead of changing its location smoothly the cube jumps to final and start positions.The same cube changes its location smoothly when i set the source to location of cylinder.Is this a bug in blender 2.8 ?
I guess your problem is that you need to apply the rotation of your cylinder: ctrlA. As it was not aligned with the Global orientation, there was a confusion in the rotation orientation.