This is a machine translation. There may be strange expressions, but I hope you can understand.
I have added a section template with the ability to select a blog post and display it in the store. However, when I selected a blog post with Japanese handles in Theme editor, an error message was displayed and I could not display the selected post in the store.
When I tried it on a section that had a field for selecting product or page, I didn't get an error even with Japanese handles.
Here are the steps to reproduce the error. I would appreciate any advice.