Attempting to use a Bamboo Fineline (3rd gen) results in a red X. It connects fine and shows the name of the stylus and battery level, but any attempt to use it as an actual stylus does not work.
Macbook Pro - OSX 10.11.6
iPad Air 2 - 10.3.2
Unfortunately there is a bug on our end, but a fix for this issue will be released soon.
At this time, we would recommend use in finger mode with the Fineline 3.
Apologies for the inconvenience.
Good to know. Thank you! : )