Fix problem blending from state to state in statemachine node, closes #21944

scene/animation/animation_node_state_machine.cpp

@@ -373,7 +373,7 @@ float AnimationNodeStateMachinePlayback::process(AnimationNodeStateMachine *sm,
 
 	if (fading_from != StringName()) {
 
-		sm->blend_node(current, sm->states[fading_from].node, p_time, p_seek, 1.0 - fade_blend, AnimationNode::FILTER_IGNORE, false);
+		sm->blend_node(fading_from, sm->states[fading_from].node, p_time, p_seek, 1.0 - fade_blend, AnimationNode::FILTER_IGNORE, false);
 	}
 
 	//guess playback position