Thanks for the replies.
I found a temporary solution in that I'm on the Developer Preview: I moved to the fast cycle which skipped the current October 2018 update and moved to the May 2019 one instead (18xyzz).
For that version luckily the issue has gone away.
Best regards,
Frank
Can confirm this works, I used the instructions here https://www.nextofwindows.com/how-to-bypass-skip-ahead-is-now-closed-windows-insider-program to join the skip ahead queue and get the latest version of Windows which is indeed working with MSI motherboard!
+1 Can confirm this Works. Had great results With this, as i got the New DirectX api With raytracing that i was after. However, the preview build seams kinda crappy to me in terms of Visual/cosmetic appearance so i hope we will get the proper update soon.