20w14a

src/main/java/carpet/mixins/PistonBlockEntity_movableTEMixin.java

@@ -109,7 +109,7 @@ public abstract class PistonBlockEntity_movableTEMixin extends BlockEntity imple
             if (this.source)
                 blockState_2 = Blocks.AIR.getDefaultState();
             else
-                blockState_2 = Block.getRenderingState(this.pushedBlock, this.world, this.pos);
+                blockState_2 = Block.postProcessState(this.pushedBlock, this.world, this.pos);
             ((WorldInterface) (this.world)).setBlockStateWithBlockEntity(this.pos, blockState_2, this.carriedBlockEntity, 3);
             this.world.breakBlock(this.pos, false, null);
         }