Upgrade Advisor may intermittently fail to detect games and provide compatibility recommendations.
You can check on this link that the latest update with adrenalin 18.12.2 is known to have this issue. This might be probably fix with later updates so all we can do is have some patience.
Same issue here as well as several other little buggy things. This new "stable" driver is anything but... The last driver was much better, I am about to roll back to the last stable. Once again AMD rushing out a driver that is not ready. SMH.