Gutenberg compatibility

[scottblackburn]

WordPress version: 5.7.2
Gutenberg block: core/image

I'm seeing some block validation errors with the core image block when using media from the global library, it looks like the save must happen without the class on the image and then it's expected on the page load in the editor. I've attached an example of the error. The class on the image tag seems to be the only difference. Is this a know issue?

Thanks in advance.