I have a Calc sheet in LibreOffice (6.0.3.2 on Ubuntu 18.04).

In one field I have the formula `=sum(D2:D85)`.

Then I changed some values in the range D2 to D85, but the sum was not recalculated. If I write the same formula into another field, it shows the new correct sum.

I know that there is an option somewhere as to when formulas should be recalculated, but I can't find it. (Of course I could delete the field with the wrong sum and rewrite it, but I want a general solution to avoid errors.)