After Update to 3.4 raster layers are not showing and other are transparent

[GottfriedKenda]

This morning I worked with ArcGIS pro and all my projects where open normally and I was able to work on them. Then I installed the newest update and now I cant see most layers from my projects anymore. Also when i try to create a new projects layers are transparent or doesn't show up at all. 

What is going on and how can i fix this?

[DanPatterson]

right-click on a raster layer in the table of contents and select ... zoom to layer

Does it appear?  

If so, then the raster needs a defined coordinate system

Define Projection (Data Management)—ArcGIS Pro | Documentation

[GottfriedKenda]

if i click on zoom to layer it is zooming to the extend but still not showing any raster layers. tried also to create new project just with data from living atlas and it is also not showing anything

[DanPatterson]

run the check on this page

ArcGIS Pro 3.4 system requirements—ArcGIS Pro | Documentation

and review your video (Directx etc) since the recommendations for video have changed

[ShaneONeill_144]

It would be worth trying a clean uninstall and reinstall of ArcGIS Pro

I've seen this fix many similar issues in the past

[TammiDoyle]

I'm having exactly the same issue. Currently uninstalling. I think this is a bug.

edited to add: reinstall did nothing. Now not even the base maps aren't displaying. I wonder if this is to do with new Windows 11 incompatabilities?

[TimCoulombe_DES]

I was having the same issue. Changing the Rendering Engine to DirectX12 from DirectX11 in Project-->Options-->Display fixed it. 

[TammiDoyle]

Oooh Tim, you legend. How on earth you found that solution is beyond me, but it appears to have fixed the issue. Thanks for that!