In some new version of Gutenberg editor apparedr a possibility to add several buttons in line. And this function doesn’t seem to work on Hueman theme. The same pattern works on Twenty Twenty and doesn’t work on Hueman. Instead of it, Hueman places the buttons under each other instead of in one line.
Screens:
How it should be
The same on Hueman
And it seems that the problem is only in the backend because in the frontend the buttons acurally are put in line.
https://wordpress.org/support/topic/buttons-in-line-not-in-line-in-fact/