I have an issue with the HTML editor for the Cpanel.

It seems when ever i open it
It should regularly open up the Main HTML screen and then the other buttons Source Code ect.

Well, It doesn't load the Site in HTML edit mode
when i click on Source code, half of the code is missing.
But when i use Editor or Code Edit, the full code is there.
Maybe im doing somthing wrong but i do not know.

thank you.