Fiori Application Not loading in BTP 404 Not Found

Hi Experts,
I have created an MTA project with standalone approuter, inside this I have createda freestyle SAPUI5 app.
Before deploying the app on BTP it is working properly in BAS but,
after deploying the app to BTP even though I have correctly maintained "welcomeFile" entry in the standalone approuter xs-app.json I am getting error index.html not found HTTP Code 404.
Please check below screenshots and help me where I am missing something.

-Regards
Rauf