Caused by: java.lang.IllegalStateException: UndoMove corruption: the beforeMoveScore (0hard/0soft) is not the undoScore (-570hard/0soft) which is the uncorruptedScore (-570hard/0soft) of the workingSolution.
1) Enable EnvironmentMode FULL_ASSERT (if you haven't already) to fail-faster in case there's a score corruption.
2) Check the Move.createUndoMove(...) method of the moveClass (class org.optaplanner.core.impl.heuristic.selector.move.generic.chained.ChainedChangeMove). The move (B1 {B0 -> C1}) might have a corrupted undoMove (B1 {B0 -> B0}

).
3) Check your custom VariableListeners (if you have any) for shadow variables that are used by the score constraints with a different score weight between the beforeMoveScore (0hard/0soft) and the undoScore (-570hard/0soft).
at org.optaplanner.core.impl.phase.scope.AbstractPhaseScope.assertExpectedUndoMoveScore(AbstractPhaseScope.java:140)
...