Thanks for your inquiry. It would be great if you please share following detail for investigation purposes.
Please use the select statement (to populate the data) inside your RDL file
Please attach the output Word file that shows the undesired behavior.
Please
attach your target Word document showing the desired behavior. You can
use Microsoft Word to create your target Word document. We will
investigate how you are expecting your final document be generated
like.
Please check the following DataSet example with select statement for your kind reference.
Thanks for sharing the detail. We have tested the scenario and have managed to reproduce the same issue at our side. For the sake of correction, we have logged this problem in our issue tracking system as WORDSRPT-232. You will be notified via this forum thread once this issue is resolved.