Removing Period Selection When Data Value is removed from a Text property

I am attempting to update the "text" property (which varies by time) for my UD1 members using a business rule that pulls data from a custom table. The update process works as expected without any issues. However, when I remove a data value from the table, OneStream removes the value from the text property, but the corresponding period remains selected, showing blanks (see Screenshot 2). I am removing the data value using the "Else" condition as shown below (Screenshot 1).

Can anyone provide insights on how to also remove the period from the selection when there is no value? TIA

Screen Shot 1: