ID:19700 The node is a carry subchain <string> node that is not placed at a legal <string> location inside the LAB, it needs to be placed with Z value equal to <int> or <int>

CAUSE: The node has bad Z value assignment which violates carry chain placement constraints. A carry subchain head(entry)/tail(exit) node has a Z value constraint on where it can be placed.

ACTION: Correct the Soft Macro QSF assignment of the node.