Operation Error in Rx5.7 Workbench

I’m trying to create a new image size. The columns are in the backend. The XML for the shared image is correct. The CAS is correct but when I attempt to check the CE the fields are not automatically populated.

This isn’t a problem as normally I would amend the ce directly from the object store. In this instance tho I’m being returned the following error:

“Could not find a field definition for img_600_255”.:mad:

Any advice would be appreciated.

As is it’s want, it’s fixed itself