Download and run Display Driver Uninstaller (http://www.guru3d.com/files-details/display-driver-uninstaller-download.html) to remove the current driver.
Download the driver 17.9.3 (whql-radeon-software-crimson-relive-17.9.3-win10-64bit-oct2) and the last driver 17.11.1
1) Extract 17.9.3 but cancel install, go to extracted files ->\Radeon-Software-Crimson-ReLive-17.9.3-Win10-64Bit-Sep30\Packages\Drivers\Display\WT6A_INF\B318290.
Find there amdxc64.dll and copy.
2) Extract 17.11.1 but cancel install,go to extracted files ->\Non-WHQL-Win10-64Bit-Radeon-Software-Crimson-ReLive-17.11.1-Nov2\Packages\Drivers\Display\WT6A_INF\B319887
Find there amdxc64.dll and replace with ones from 17.9.3. package.
3)Then run the 17.11.1 setup. You may get an error. Continue with it and u should have 17.11.1 installed without those nasty artifacts and long loading times (Probably lol)
I found this tutorial on the Forza forums. I did this steps and the long loading is gone after the game update.
The most important is install driver 17.11.1 with the "amdxc64.dll" from 17.9.3
Give a try,
First of all thank you for your reply and help.
Unfortunately this workaround did not solve my problem
Maybe I try to replace the amdxcstub64.dll as well and report back then
As stated before I now tried replacing both files to no avail (by the way always remove my previous driver in safe mode with ddu).
At this point I think I am stuck at 17.9.3 for the foreseable future
This is with the new WQHL 17.11.1 release still no progress being made on this issue.
Are you guys working on it I could not see it in any known issues report.
The WHQL 17.11.1 is just the WHQL'd version of the previous 17.11.1 Hotfix driver, so no change is expected with regard to this issue.