Chrome Version: 64.0.3282.144
Chrome OS Version: 64.0.3282.144
Chrome OS Platform: Samsung XE303C12
Network info: 

Please specify Cr-* of the system to which this bug/feature applies (add
the label below).

Steps To Reproduce:
(1)Have a wireless mouse connected, I have a wireless mouse.
(2)Use touch pad to scroll up or down.
(3)Then try to use your mouse to scroll up or down, it then shouldnt work.

Expected Result: Mouse scrolling is disabled.

Actual Result: Mouse scrolling stops working.

How frequently does this problem reproduce? Always

What is the impact to the user, and is there a workaround? If so, what is
it? Big impact.

Quick Fix: Scroll with touch pad and use mouse scroll wheel at same time to fix to make mouse work again.