I found one, final, errant category that, after removing allowed my core imports to all succeed.
Now, I'm hitting a new issue.
I have an adventure that I've created an export for, that also has a Storyboard. If I export it without the storyboard, it imports to the target realm successfully.
As soon as I apply the export tag to the storyboard, run a new file and then try to import it (preserving ownership), it hits an Object reference exception.
I've verified all associated content for the plot points only point to articles with the export tag. There are a few items in the plot without associated content.
I'm going to setup a test plot with a single, unassociated point and see if that imports correctly.
Then, I'll associate an article and see what happens.
Baby steps
