Why Doesn't SUM update when inserting rows?

I have a simple expense report CALC spreadsheet. It has 5 columns with SUM() functions at the bottom of each for totals. When I insert additional rows for additional expense items, the first column’s SUM() updates but the others do not, e.g: Sum(D6:D14), Sum (E6:E14); add 4 rows; Sum(D6:D18), Sum(E6:E14)

This seems to be new behavior. I know it worked properly in the past. I am running LO 5.02.2.

I tried to file a bug at Bugzilla but couldn’t find LO listed in the NEW section.

TIA.