Ideastream issue with draw.io plugin

The awesome draw.io (aka drawit) plugin allows you to create diagrams, sketches, etc within your post.

For some reason when it integrates into the ideastream plugin, it gets all screwed up and the UI is squashed down. Is this an issue with something the ideastream is doing? Can someone who knows this stuff please try Drawit with ideastream, and also with the built in blog post (this works fine for drawit)?

https://wordpress.org/plugins/wp-idea-stream/