TMSFMXGrid problem sorting hidden rows

FMX TMS FMX UI Pack
1

I created a new c++ project in Rad Studio 10.2 with UI Pack 3.6.6.0 with just a TMSFMXGrid and a menu.  The initial grid was 10 rows x 5 columns.  In column 1 (from 0), I entered 1-9 in consecutive rows to number each row.  I setup a menu item to do Grid->HideRow(3);after which the rows were 1,2,4,5,6,7,8,9 which is what I expect.  After clicking column 1, row 0 to sort, the rows were 1,2,4,5,6,7,8, (blank).  After sorting a few more times, all rows were 5 except the last row was still (blank).

2

Please use The helper functions RealToDisplRow to convert the index of the column to the correct value used internally.

3

Thanks for the suggestion but it doesn't help.  I tried
Grid->HideRow(Grid->RealToDisplRow (3)) and got the same incorrect
results after sorting.

4

Setting row height to 0 instead of hiding rows solves the problem.