Created attachment 65514 [details] very simple test document 1) Open the attached xlsx document. 2) Under the Category you see the '(empty)' label. But it's supposed to show 'A'. For reasons not yet known, during xlsx import, the pivot cache initialization code fails to fetch correct values from formula cells, which causes the '(empty)' label to be shown for all formula cells.
I'll look into this.
Kohei Yoshida committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=ae296a60781a2b5d5b7523cbda3444e3dd21506f fdo#53456: initialize pivot tables *after* the formula cells.
Kohei Yoshida committed a patch related to this issue. It has been pushed to "libreoffice-3-6": http://cgit.freedesktop.org/libreoffice/core/commit/?id=0eeab7204ac244bebb0f8c4d8a8891037423534a&g=libreoffice-3-6 fdo#53456: initialize pivot tables *after* the formula cells. It will be available in LibreOffice 3.6.1.
Now this is fixed.