Any way to fix my surface pen's problems after Fall Creator's Update?

[Windows Central Question]

I've been holding back no updating my Surface Pro 3 for a while because the Fall Creator's Update has proven to really hinder my drawing. Because of this I actually uninstalled the update up until now where Windows finds it imperative that I update it now. The Side button on my Surface pen worked as a eyedropper shortcut which really helps me draw as fast as I usually do, but now it doesn't even register. Are there any solutions? To elaborate I've got the pen for the Surface Pro 4.