Let's Encrypt DNS-01 wildcard validation failed

[pingus]

Hi

I could request a dns-01 (cloudflare) wildcard certificate successfully but under Services->Let's Encrypt->Certificates it shows up with Last Acme Status vaildation failed. Is this a bug or went something wrong with the wildcard cert? The cert itself is workling well.

Edit: I also got a host certificate with dns-01 and it also shows validation failed.

Regards,
Pingus