I've been having the exact same issue with my Acer R7-372T for over a year now. It has been in repair for 3 times, and still the 'jumping cursor' problem persists. During those repairs, both the touchpad and the motherboard have been replaced - and still no luck.
I have applied for a replacement of the laptop, but Acer Belgium claims that the R7-372T is out of stock and won't be restocked. They offer me a Spin 5 instead. I prefer the wonderful hinge on the T7-372T, though.
So if anyone has a solution for this problem, I'd be happy to hear about it.