GP3_1 bug but not in GP3_2: Resources lost when moving tasks drag-and-drop

In GP v3.2, this does not happen.

In GP v3.1, dragging tasks with resoruces onto a new level in the hierarchy, does break the assignment of resources and the tasks loose costs.

Is there a way to fix this in GP v3.1, or expectations to fix?

We do not provide updates to the older versions, sorry.