Can you please explain in a more detailed way what you dislike / have problems?
In my experience with sinscan, after you start it, you should follow the alignment procedure - there are quite a few vids on Youtube about it.
I don't think it will start to follow something if you simply point "manually" the telescope to.
Then ... you also have some settings with regards to tracking - please check them.
If i recall ... once you align and then "tell" it to go to something, then you also have a button called "goto and follow" .. or something like this - at least in PC app.
another thing - don't expect it to be incredibly accurate at high magnifications even after you align it. Use low magnification when you tell if to go to some target ... once is settled, try to center it as best as you can at low magnification and then switch to higher magnification. Depending on how much you jump in magnification you may find-out that your object "vanished'. Well ... you jumped too much in magnification.
Imagine this process like you would look through a window - if you are close to the window, your view is quite wide (that would be low magnification with telescope). Now, if you move back 4 steps from window, you'll see less; if you move back again 3 steps, you'll see even less. That's because your field of view decreases / gets narrower. Same thing happens with magnification - your view "window: get narrower and narrower.
Why your target vanishes? well ... same example with the window ... assume you make 6 steps back, but at a slight angle. For sure the thing that was in middle when you were close .. now is not in middle anymore. Give it more distance and at some point will completely "vanish".
