App Icon in iTunes Connect is missing

I archived and submitted a cordova app using Xcode. On testing locally, I find that the icon is correctly shown on the app itself, but when I go to iTunes Connect, the app icon part of the app is shown blank. Is that expected? Do I have to explicitly upload an icon to the app icon part of iTunes Connect? Or, am I doing something wrong? Please advise! Thanks!

Where did my Apple app icon go?

If you still can't find it, try resetting the home screen by selecting “Settings” > “General “> “Reset” > “Reset Home Screen Layout“. This should return your icons to default settings and restore the App Store icon.

When you have a new app, and you upload it to the appstore the icon will remain "blank" - even if it verified correctly after the upload, your bundle contains the icon, and your app displays it correctly in the dock.

Only after you click "Submit for Review" the first time, it will appear ( not entirely sure if it's instant, but I know for a fact it was there when I checked 1-2 hours after submitting it for review ).