It sounds like a sorting issue.. Is this header a sub-header? If so check the sort by criteria..
Are the missing header objects fields in the header or graphic objects?
It is header.
On the header, there are either text or graphics. I use either text tools or insert picture.
What happens if you reboot your phone?
What happens if you test this layout using FileMaker Pro on your computer?
Make sure none of your header images are bleeding into the body.. If you have anything that overlaps from the header to the body it will not show..
How are you switching layouts on one vs the other? What is the difference?
I double checked and header images are no bleeding to body.
It does not happen all the time on same operation flow. On the same layout, sometimes it works and sometimes it does not work. I will try to get the operation pattern which will have issue.
Nothing wrong on FileMaker Pro.
I reboot iPhone minutes ago and the problem does not happen now. I will do more test.