Problem with Gutenberg select stories block

Hi! In some tests with selected stories block option (in WordPress created Page), if i change to “code mode” in Gutenberg and return to “visual editor mode”, all selected stories will go out, and don’t show any stories. The problems appearance if i publish a page and return the editor.

The block will show only this code:

<!-- wp:web-stories/embed {"blockType":"selected-stories","stories":[],"viewType":"grid","numOfColumns":4,"fieldState":{"show_title":true,"show_author":false,"show_date":false,"show_image_alignment":false,"show_excerpt":false,"show_sharp_corners":false,"show_archive_link":false,"show_circle_size":false,"show_number_of_columns":false}} /-->

I use the “Neve” WordPress theme, because the theme have block with “Instagram Style” in top of all pages.