I have RX460 and experiencing same issue. I tried some , and always have same result in the end. So no temporary solution .
This issue has been reported starting from July .
If you do not using any DXVA/Hardware Acceleration things for playing videos, you can try to uninstall Radeon settings and use afterburner 4.3.0beta14.
But if you are using DXVA for videos, for now 3rd-party GPU tool seems have problem with RX400's Fan spin control. It sometimes crash Fan control and Fan goes 100% speed without a reason. This issue did not fix yet on 16.9.1, too. At least in my case.
You still can try to only install driver without radeon settings to see if it works for you. But I can not do that, I still have needs to use Radeon settings.
As for when will the fix come , I do not know.
Hello! I have the same issue. Even with the latest 16.9.2 WHQL drivers. If I open Wattman after setting custom fan profile and play games, it always crashes and it says "radeon settings host application has stopped working". Do you still have this issue, if not can you tell me the solution? Also, do you have MSI Afterburner installed? Because some people say that it is related to AB. But I want to monitor my temps during the game so MSI AB is essential for me. My GPU is RX 480 Nitro+ 8GB. Thanks!
Just purchased a RX 480 and am having a similar issue. I don't even use Wattman, have never even touched any of the settings. Just doing a quick search it looks like this has been an ongoing issue since the summer of last year, with no solutions or temporary fixes being provided by AMD.
Shame, I decided to come back AMD after being a team green for many years and looks like I'll now have to return the card...I want to keep it, it's a fantastic piece of hardware but once again AMD drivers are the problem.
Thanks, those are the drivers I've been using. I used AMD driver cleaning utility and re-installed the drivers and it seems to have fixed the problem for now. I'm hoping the problem doesn't come back, this RX 480 card is a terrific card and would hate to have to switch to the inferior GTX 1060 simply because of a driver issue.