Headline disappears under fixed background photo

On smartphones, a heading disappears behind a fixed background image of a cell.

The heading has a minus value for the spacing at the top. Then it protrudes above it on the desktop.

The first heading with the photo works perfectly (see first image) and the second heading with the photo has an error.

The heading disappears behind the photo (screenshot 2), I don't know why. Settings are the same!

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