Some footer text not showing on mobile

Phone number in footer is not showing on iOS web browsers (Safari, Brave), though if you tap on the area to the left of the email address the number shows. (Screenshots here.)

In customizer: footer, I checked the tablet and phone layouts, and the number appears there in all three, in customizer live preview. Styling for the phone number (color etc) should not be any different than the other text. Any ideas?

WP 6.6.1, Kadence 1.2.7.

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