UE 5.4 Control Rig - "Item Chain" function missing

I’m doing a Control Rig for a character and I just noticed that the function:

Item Chain

Is missing from the list of nodes. I tried unchecking context sensitive and calling it inside a Function or the Rig Graph - it doesn’t show.

Has this function name changed?
Is this a bug in UE 5.4?

This is how the function looks like in 5.3
image