Problems with saving settings in Gridbox editor

Hi,
I’m experiencing some issues with an overlay section ("Menu") located in the header of one of my websites. Every time I open any page of the site in the Gridbox editor, the previously set and saved settings are not retained:
1) The row inside the overlay section loses the "full width" setting.
2) The "post slider" plugin has a display bug: it appears with an increased height due to transparent space below the post images. To modify the plugin, I’m forced to scroll down the page until I see the navigation arrows and the Gridbox edit icon. To restore the correct display of the "post slider," I have to adjust the height and then reset it to its original value. I’ve encountered this display issue on many of the websites I’ve created.
3) I have to reapply the left and right padding values (0px for the right and 300px for the left) of the overlay section, as they default back to 20px.

After making these three adjustments, saving, and closing the page, if I reopen it in the Gridbox editor, the same issues occur again.

I’ve also noticed these problems with the theme used on the homepage of the same website.

I’m sending you a video and login credentials via your contact form.

Thank you,
Gianni