Hi Jannis,
I’m not really sure it is about my hosting site since we deleted some other posts before, and it all worked out.
I consider this issue is totally about Ghost side because I cannot see my activities on that day on the History tab as well.
The weird thing is that Ghost didn’t show any errors or detect anything unusual.
I am just sharing my experience with you. I have seen the exact behaviour you are describing in a cluster setup.
Either way, without providing more information on your set up and some logs, it’s unlikely somebody will be able to help.
I suggest you try deleting a post again, take a look at the network request in your browser’s dev tools and post it here, along with any server logs you receive. Remove any secrets or passwords, of course, and tell us more about your hosting setup.
All of this is under the assumption that you’re self hosting. If you’re not, then it’s best to reach out to your hosting provider for logs.