When editing a worksheet that has grown long enough that you scroll down for more space, the UI jumps up to the top of the page with every keystroke. This makes the input below the bottom of the page unviewable when editing. Effectively, worksheets cannot be longer than can be displayed when scrolled all of the way up to the top. I'm just using normal functions and matrices, no plotting or graphics or anything crazy.
Recreated several times, even after reloading the page on both Chrome (43.0) and Safari (8.0.7) on OSX 10.10.4 (current versions)
This is my first issue to report, so sorry if I did this incorrectly. I'm also not a terribly good programmer, so I won't be helping fix it. Thanks! LOVE smath!!!