Could not install new app from TestFlight

I just created a new app and wanted to distribute for testing with internal testing team. But I am keep getting the error

"Could not install <App name>, the requested app is not available or doesn't exist"

Even I tried to export the IPA and install directly on the device, then I am getting following error

"Unable to install <App name> This app cannot be installed because its integrity could not be verified"

I have seen many others posted the similar issues and most of them are for existing apps. But this is a newly developed app and getting this issue.

@Apple team, please look into this on priority and anyone out there, if you have faced similar issues and solved it, your help also appreciated.

Thanks!

"Unable to install <App name> This app cannot be installed because its integrity could not be verified"

This issue got resolved by updating the profiles, but still facing the issue with TestFlight.

Could not install new app from TestFlight
 
 
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