I have a frontend submission form in a website that worked fine. Submissions aren't the problem. Editing them after submission is a problem. I'm getting the rwmb-error 'you're not allowed to edit this post'. I use the Bricks form element for MB. The form settings haven't changed and it used to work fine. It isn't working for all the roles.
If you use the MB frontend shortcodes to show the form and dashboard in the frontend without using Bricks, do they work on your site? Please follow the documentation https://docs.metabox.io/extensions/mb-frontend-submission/
I think the issue arises from the Bricks element itself, not from Meta Box.
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