Hello,
I’m sorry for the delayed response here! We did some testing on our end, but so far have not been able to recreate the issue. Can you tell me which iOS this is happening on? What happens when you try to export?
Can you also see if this still happens with a default theme enabled and all other plugins disabled? Since this was working previously, it could be that there is a conflict with the current version. If you don’t want to do this on your live site and don’t already have a staging environment, the free WP Staging plugin will let you create a quick copy of your live site that you can use for testing.
Let me know what you find!
Thanks,
Jennifer