Page experience not showing for on https://www.ixigo.com/pnr-status-enquiry?amp=1

Hi there,

I was testing our URL https://www.ixigo.com/pnr-status-enquiry?amp=1 on AMP Page experience tester
https://amp.dev/page-experience/

However, it tells me that AMP URL is not valid

But it works fine on AMP tester: https://search.google.com/test/amp/result?id=D_tIGQkoDyb5wpu84tfBKQ

Can you let me know what is the issue here?

Start by reproducing the URL in the AMP Page Experience tester and comparing its result with the linked AMP tester result. Investigate the reported validity discrepancy; done means the cause is identified and the appropriate resolution or explanation is recorded.

Written by the indexing model from the issue text.