Geoff to the rescue ... Now it works fine
I think you made a nice job of a deceptively tricky study. Often with this particular piece players get a bit unsettled by whether or not to actually do all the rests. We can discuss till the cows come home whether such rests are actually intended or not ... the trouble is sometimes they clearly are intended, sometimes probably they are meant just as spacers for the next written pitch.
Next time you think about this one, have a look whether, mainly the thumb, is making rests or not. Certainly, at least trying, is good technique development, even if at a lower than ideal tempo.