White screen when returning to image editor

[SimonvanWijhe]

Metabox version 4.18.4

Issue Overview

After scaling an image, closing the editor and opening the editor again, a white screen appears. I am using the "image_advanced".

Steps to Reproduce (for bugs)

1. Start editing a post.
2. Click the pencil icon to start editing an image.
3. Click the "edit image" button"
4. Scale the image
5. Click the 'scale' button
6. Close the edit screen
7. Click the pencil icon to start editing the same image
8. Click the "edit image"button
9. A white screen appears.

Browser: chrome and firefox.

Expected Behavior

Continue editing the same image.

Current Behavior

A white screen. When the page is saved after scaling the issue is resolved. The cropped image can now be edited. Also when leaving the editor by clickick 'cancel' instead of the closing 'X', the problem does not occur.

Screenshots / Video