How to wrap TextBlocks in WrapPanel?

Here in my first 3 Ledger views, I've added EditText to filter Particulars column. In the Particulars column, there're two HiBlock, the black part is particulars and the gray part in narration, with TextWrapping.Wrap inside a WrapPanel BUT these don't wrap properly:

those Rent. Gas, Water, etc. are on second line! Why does the gray narration, November, 2020, on first line? How to wrap it properly?