If I load a file with 449606 lines (16MB) then I cannot view the content of the bottom of the file.If you view the attached image, then I have scrolled all the way to the bottom with CTRL+END, but the last visual line I have is line 449471, though the file has 449606 lines in total.
I can then (slowly) scroll up with the cursor key, until the cursor gets visual at line 449472.