UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10575.22.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.26 Safari/537.36
Platform: 10575.22.0 (Official Build) beta-channel eve

Steps to reproduce the problem:
1. Plug in USB mouse via USB-C adaptor (Moshi brand from Google Store).
2. Attempt to depress the mouse's scroll wheel to scroll content horizontally or move up and down content vertically by sliding the mouse across the desk.
3. Depressing the button does nothing. On-screen cursor does not change. Content does not scroll.

What is the expected behavior?
Depressing the mouse's scroll wheel would (1) change on-screen cursor and (2) enable horizontal and vertical scrolling of content by sliding the mouse (similar to two-finger scrolling on the trackpad).

What went wrong?
Mouse scroll wheel functionality was working fine before the last update. Something seems to have broken along the way.

Did this work before? Yes Unknown - last prior build seemed fine.

Chrome version: 67.0.3396.26  Channel: beta
OS Version: 10575.22.0
Flash Version: 29.0.0.168 /opt/google/chrome/pepper/libpepflashplayer.so