App Clip Advanced Experience & Associated Domains Issue

I have created app-clip and uploaded in testflight.

I need to invoke the app-clip using the NFC tag. it does work well in Development mode.

Now i have uploaded AASA on the website it contains the details like below.

{ "appclips": { "apps": [ "123456789.com.mycompanyname.myapp" ] } }

i have added associated domain in main app and in app clip both.

added appclip and applink . cause i have seen this way in one of the question from this forum.

but i am facing this from two days.

What can go wrong here ? Having no clue on this. Am i missing any steps here. As my testflight appclip is getting crashed.

App Clip Advanced Experience & Associated Domains Issue
 
 
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