Those custom capabilities are not being copied to the alternate post and if an user without the default edit_post cap won't be able to view or edit the alternate version.
I managed to fix the issue by adding the following line on the line 414 of bu-versions.php:
$args['cap'] = $type->cap;
I don't know if it will have any impact in your design but if not maybe you could include this update in your next version?
Hi! I found an issue on my custom post type with custom capabilities such as:
` 'capability_type' => 'events', 'capabilities' => array( // Meta capabilities 'edit_post' => 'event_edit', 'read_post' => 'event_read', 'delete_post' => 'event_delete',
Those custom capabilities are not being copied to the alternate post and if an user without the default edit_post cap won't be able to view or edit the alternate version.
I managed to fix the issue by adding the following line on the line 414 of bu-versions.php:
$args['cap'] = $type->cap;
I don't know if it will have any impact in your design but if not maybe you could include this update in your next version?
Best regards,