Overlays causing parts of the UI to flicker when playing in DX12

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1

Since patch 8.1 or 8.1.5 there is a pretty annoying flickering issue with DX12 and overlay programs. Its happening on the SL beta client too.

A few examples here:
https://i.imgur.com/a7XSUk1.mp4 flickering Icons

https://i.imgur.com/hyrLoKb.mp4 flickering parts of the map

https://i.imgur.com/NuL8uec.mp4 same issue

In my case its caused by RTSS which im using to monitor my CPU/GPU temps and my FPS.

So far i tried pretty much anything, new GPU / different versions of win10 / different drivers / game reinstalls / no addons. The only fix i found so far is to turn off the overlay.

2

I want to bump this thread, because many months now passed , changes to wow graphic engine was made and several nvidia driver updates, but this bug is still not fixed.
Any monitoring software(be it RTSS, fpsmon) with OSD enabled makes ui elements and map flicker in DX12.
gtx1070, win10.