I have found that New apps added to the store in the past week don't show up in the ERA Viewer.
same for me.
I wouldn't be surprised if all these SDK 8.4.0 related bugs (apps don't appear in the store, ERA can't fetch them, etc) are related to the switch from zip to 7zip
Even old apps with a new version uploaded, built with 8.4.0 don't show up in ERA. There's this error message:
Same for me