Shared Transitions are not usable by separate state machines within the same ABP

Shared transition rules/crossfades are not usable by other state machines within the same ABP. Copy/Pasting these transitions to a new machine, create new independent shared transitions of the same name.

Create an animation BP.

Create a state machine with at least two states.

Create a transition between these two states and Promote To Shared.

Within one of the states, create a nested state machine with at least two states.

Create a transition between these two nested states and try to Use the previously shared transition.

Result: The Shared transition is not usable.