Step-by-Step Transformer  7.5.0
General Troubleshooting > With Transformer on Windows >

Allocation Appears Incorrect in Time-based Partitioned Cubes if a Cube is Updated with Data from Another Period

After you update an individual or member cube with data from another period, the allocated measures may appear incorrect because Transformer allocates measures at the lower levels of a dimension and then rolls them up. By design, measures are not separately allocated at each level.