New posts are no longer saved via the front end submission form. I have had issues with this form before (see topic 'not allowed to edit a post published...). MB version 5.10.8.
There is some urgency to solve this problem as the client wants to add posts on Monday 24th.
Can you please share the shortcode you use to show the frontend form? If use a builder like Bricks or Elementor, please share some screenshots of the widget settings. I will help you check the issue there.
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