Thank you for contacting us and I'd be happy to assist.
The views store the selected post type's slugs in the settings. So if a selected post type's slug is changed, you'll experience what is shown in your screenshot.
I don't foresee any error or performance drawback if the views are left as they are. However, to fix them you can follow these steps:
1. You'll first restore the change CPT's slug back to what it was before.
2. Then when you open the view for editing, you'll be able to unselect that CPT from the content selection settings.
3. After that target CPT has been changed from all the views, you can change its slug back to the new one.
I hope this helps and please let me know if you need further assistance.
regards,
Waqar
This ticket is now closed. If you're a WPML client and need related help, please open a new support ticket.