Dissapearing lines while using mail merge

Hi,
Im having an issue when using Mail Merge feature. The current record displays always -1, and the real problem is when I press the “Next record” button, some lines in my document just dissapears.

PISMA N bug.odt (38.0 KB)

Automatic page break in mailmerge always triggers next record, so if you have multiple entries on a page, starting the first (or terminating the last) entry with “next record” will do “two steps forward” and skip one. Remove the “next record” field you have at “sheet edge”.

I mean if I press “next record” the line on each pages top, containg place, and date just dissapears. When press again also 2nd line containig unique sygnature also dissapears, also some line at all pages bottoms. I dont think its proper bahavior. This dissapearances also cant be rolled back by crtl+z.