Dynamics AX 4 report - Unable to load page

One of the very old question pop up again recently - the "Unable to load page" on AX4 report.
The last I know, it need a hotfix on the Dynamics AX client (AX32.exe).

I had a quick check on local instance with different client build (4.0.2501.116 and 4.0.2503.998), one has the error and the other doesn't.

• App: 4.0.2501.116 with Client: 4.0.2501.116 => "Unable to load page" error on report
• App: 4.0.2501.116 with Client: 4.0.2503.998 => No error on report