Failed to subclass window. Disabling overlay rendering

[NateArasti]

Getting this error(multiple times) when starting empty scene in empty project
Epic Manager: Category - LogEOSOverlay Message - Failed to subclass window. Disabling overlay rendering
this causes not working neither unity editor ui nor lobby gui

[bbb0x]

I get this error even after manually upgrading and modifying the package to work with the latest SDK.
It is editor only however and does not appear in builds. Any extra UI works fine for me in editor.
I suspect it's a problem with EOS trying to overlay and because the editor is not a standard game it runs into trouble.
I couldn't figure out a fix but since it appears to be harmless you could filter the error out in code.