I can’t see how this would be a GP issue – GP has no way to remove certain field from WooCommerce account page.
Can you:
1. Disable all plugins except for GP Premium and WooCommerce to test if the issue still exists.’
Make sure all custom functions are disabled and activate the parent theme if you are using a child theme.
2. If yes, then activate a Twenty series WP theme to test if the issue exists there as well.
I agree, it is a strange bug.
I have (again) changed to default theme. Same issue.
I have disabled all plugins. Same issue.
I removed extra css from GeneratePress. Same issue.
Even tried to disable WooCommerce and activated it again.