My VPN is on, but when check for DNS then it shows not connected

Hi 1.1.1.1 team.

I’m using Android App and VPN is On. But sometimes, When I check about Connectivity in 1.1.1.1/help it shows not connected and Resolver name shows Google instead of My default DNS name or Cloudflare name.

https://1.1.1.1/help#eyJpc0NmIjoiTm8iLCJpc0RvdCI6Ik5vIiwiaXNEb2giOiJObyIsInJlc29sdmVySXAtMS4xLjEuMSI6IlllcyIsInJlc29sdmVySXAtMS4wLjAuMSI6IlllcyIsInJlc29sdmVySXAtMjYwNjo0NzAwOjQ3MDA6OjExMTEiOiJObyIsInJlc29sdmVySXAtMjYwNjo0NzAwOjQ3MDA6OjEwMDEiOiJObyIsImRhdGFjZW50ZXJMb2NhdGlvbiI6IkRFTCIsImlzcE5hbWUiOiJHb29nbGUiLCJpc3BBc24iOiIxNTE2OSJ9

It’s showing

AS Name Google
AS Number 15169

Yes, It shows Google, not Cloudflare. And I donno why it happen sometimes.