User blog comment:Dragonjet/KC3改/@comment-26323579-20161015002242/@comment-25615967-20161024034743

This happened to me also after Chrome auto updated to the Version 54.0.2840.71 m (64-bit), I tried using the API on other window but it still gave me the white screen, I did right click on the flash element and I got this message: "movie not loaded", and on Firefox and Chrome 53.0.2785.116 the API method worked fine.

Now, I somehow fixed it, but Im not sure how and why this happened.

What I did was: clear the cache and cookies, uninstall chrome, clear all user data, delete the Google folders on Program Files (x86) and in C:\Users\Username\AppData\Local, then reinstalled the latest version of Chrome, reinstalled KC3 and tried API method and it worked now.