Oh! Sorry it didn’t help… hopefully this bug will be fixed soon. It’s affected all the sites I’ve built with ACF Pro. V annoying!
I’ve found a temporary solution – I’ve installed the “Classic Editor” plugin and my fields are once again visible in wp-admin. Not ideal but works in the meantime until the bug is fixed.
I’m having the exact same issue. WP 5.2 update happened and now multiple fields aren’t showing in wp-admin interface. Data still exists in FE. I’ve created a support ticket 2 days ago but so far no response…