Created attachment 114846 [details] Calc_No_Border When I edit a cell reference more than 31 cells, the cells later than 31 do not have color border. Step: 1. Input something in A1 to A40 2. Input this in C27 and press Enter: =A1+A2+A3+A4+A5+A6+A7+A8+A9+A10+A11+A11+A12+A13+A14+A15+A16+A17+A18+A19+A20+A21+A22+A23+A24+A25+A26+A27+A28+A29+A30+A31+A32+A33+A34+A35+A36+A37+A38+A39+A40 3. Double click C27 You can see in Cell A1 to A31, they have color border, in Cell A32 to A40, they don't have any border. Maybe color is not enough, but maybe it can show black border?
Created attachment 114847 [details] demo
I can confirm with LO 4.4.2.2, win7
I just tested this with 5.2.1. I can't reproduce the problem. I also remember reading something about improvements to the way formulas refer to cells, but I can't remember where exactly (maybe the release notes). Setting this as resolved worksforme.