This issue is still in the final build, no project to submit as it’s not project related, go to DX11, asset store opens and it’s all grey, switch to DX9, works just fine.
All other menus / Windows work just fine in both modes so it seems to be asset store specific, also my scènes work just fine in DX11 with SM5.0 shader so it’s definately not a DX11 support issue.
Same issue here.
I have just submitted a bug report.
Not a game breaker as it’s always possible to switch to DX9 , import and go back to DX11, but well, that’s quite a pain when importing maintaining dozens of assets up to date!
A wild guess but i guess the bug is simply that the component they use for the web browser aren’t DX11 compatible 