I was trying to attach a image from the files that has been already uploaded previously, and the iframe just won't load, got the following error:
ERROR [User Error]: Bad RecordClassName '' and $baseClass not set
IN GET /admin/EditForm/field/Thumbnail/EditFileForm/field/ExistingFile/tree?forceValue=&SecurityID=a3b5fd2f55e54f97db5b000b2949f2a883f3292f
Just wondering if this is a bug from ss2.4.5
Just did a test on ss2.4.1, attach image this way is fine.
I have attached a screen shot of the error message.