http://forum.wacom.eu/viewtopic.php?f=11&t=4546 I made a thread on the wacom forums already on this issue. The Acer Spin 5 sp513-54N doesn't seem to be compatible with Wacom Feel Drivers, even though it was advertised as wacom aes. It is worrying that the store page shortly after I purchased the product removed any mention of wacom aes, though the marketing blurb still has mention of it. I need the wacom feel drivers as the pressure sensitivity is terrible and not the 4096 levels of pressure advertised by Acer. Please communicate with Wacom to get compatibility with the Wacom Feel drivers. I understand software support is a difficult process, but at the very least don't advertise wacom aes support for months and then drop it somehow.
[Edited the thread to add issue detail]