So I try with other theme, and is not the theme the problem, when is converted from Toolset to Metabox and change the image to image advanced is just not working correct, so it's not a theme problem.
Kadence is compatible with Metabox. I have built a lot of websites with Kadence Metabox. Single image it's not working with the advance gallery block from Kadence, it has to be advance image not a single image. You have a problem on the Toolset Migration plugin. Changing from single to advance, it's just not working correctly.
