Projects Tasks some not visible

In some procjets actions aren’t visible.
I see only the color icons übrig, soon due, overdue
When I click in eye I see the actions very short
I use shut down OF on home screen.
(use finger to move OF in above direction)
But no solution by next start of OF.
I use sync OF between iMac and iPad.
On iMac there is no problem.
What can solve my problem?
I use iOS8 on iPad.

Jochen (.de)