NinjaForms Generate BLocks Clash

When GenerateBlocks and NinjaForms are both active and a Container Block and a NinjaForms block are used on the same page, the selection model for a background image in a Generate Press Container Block is completely broken and unusable. The media modal doesn’t appear properly only some elements can be seen in the lower left corner of the edit screen. There is a React issue logged in the console. If you try to save the page there is a JSON error which prevent saving. If I try to remove the Backround Image the button on the Container block does not work.

On pages without a Ninja forms block, and that only have a Generate Press block the functionality is fine. So it is the presence of the NinjaForms block on the same page that seems to trigger the issue.

If I disable the Ninja Forms plugin I can edit the background image for a Container Block on pages that also have a NinjaForms block and then reactivate afterwards. Which is a workaround for the moment.
It’s difficult to ascertain which block is the cause of the issue. I suspect NinjaForms but am aware it could be coding in either that could cause the issue.

I have raised the issue with the NinjaForms team via support. Hope this is helpful for those that also might be hitting the same issue and now have a workaround and for you and Ninaja Forms in ascertaining what is causing the issue.