Exactly the same problem here with my Philips monitor and Windows 10 PC.
SmartImage problem was resolved by accepting the optional update HP Inc - Software Component 1.68.3815.0 but today another Windows update has installed HP Inc - Software Component 1.68.3826.0 and the problem has returned ... constant changing colour settings to 'Gamer' mode.
This time it was installed without me selecting it, is there any way of blocking 'optional' updates? This is a screen shot of my recent 'optional' installs.
Paul