yes, this is an issue reported to hopefully get updated, When you spin back you have no buffer at all to scratch on the first beat, it stinks
for now as a workaround so it doesnt stop at least, you can turn of AUTO CUE this way if you spin back to far at least the track won't stop, This will not prevent you from going to the previous track though, Only the Nexus 2000 has the feature to use "SINGLE" mode to prevent that BUT you still have no room to scratch on the first beat
I have the Nexus in which case it does not go to previous track, but you can see in my video how bad it can be