I realise this is not the same issue. Sorry about that.
I have the same issue on a 4k screen.
I encountered the same problem. I used a Japanese version of Windows 10, so I thought it was a problem caused by Japanese, but this seems to be a problem with Unreal's display compatibility setting. In my case, the system display is set to 175%, but this setting may not be very relevant.
The solution is to right-click on the shortcut icon for the target Unreal version, select the properties at the bottom, and select the Compatibility tab in the panel that opens. Click the “Change high DPI setting” button at the bottom and check the “Overwrite high DPI scale setting” checkbox at the bottom of the panel. Select “System (expanded)” from the pull-down menu. And click OK.
The HQ settings and OK button will now be displayed.
I have the same issue cant see the HQ shader or the accept button, have to Tab down and hope I get the right ones
You are going to edit a submitted issue. This issue will be changed to private draft mode until you click submit again. Are you sure?