I think there's a bug because at first I couldn't click and drag it , so it was stuck half on my screen and half off. Later after warping between planets/ship/stronghold and refreshing my UI, I was able to finally move it out of my way. I'm not sure which of my steps fixed it though.
Edit: After a second look at it, I think the problem might just be that the clickable area is weird. I have to click and drag the blue part to move it, but only certain parts of the blue part work.