DnsClient.Default.ResolveAsync is returning null while DnsClient.Default.Resolve is returing results correctly

[SainiAshish]

I am using to get the txt records but it is returning null. DnsMessage dnsMessage = await DnsClient.Default.Resolve(DomainName.Parse("google.com"), RecordType.Txt)

while non async version DnsMessage dnsMessage = DnsClient.Default.Resolve(DomainName.Parse("google.com"), RecordType.Txt) working fine.