This appears to be a behavior from a recent Windows update. While Microsoft hasn't publicly acknowledged it yet, many users already reported this same issue.
Try this workaround
Type "Color Management" in the search on the taskbar to launch this control panel item.
Once it opens, select your monitor > check Use my settings for this device > click Add > select sRGB IEC61966-2.1 if it is listed> set it as the Default Profile.
Restart the computer and see if it helps.