Can't restore IK windows to full screen

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

UI/Tools

Summary

I was on an IK Retargeter window. While trying to close it, I accidentally pressed the little square between the x and - buttons, and now any time I open anything, all I see is a small window that only shows the File, Edit, and Asset buttons. I tried to use Shift+Enter+Tab, and I tried to use F11. Neither worked.

Steps to Reproduce

Open an IK Retargeter or IK Rig and press the square between the - and x buttons at the top right corner.

Expected Result

The expected behavior would be a smaller window that still has the x, square, and - buttons so you can restore it to original form.

Observed Result

It became a small window with no x, square, or - buttons and almost no functionality

Platform(s)

UEFN