Issue emails marked to gmail as dkim fail

[kokobine]

how is it possible my domain dkim is marked as fail in google gmail but on several dkim resolvers as EasyDMARC | DMARC Journey Made Simple or toolbox appear valid ?
i deleted the dns record then uncheck the Use DKIM spam protection system to sign outgoing email messages .... --> save --> re-checked it and created the dns record again ...
still marked as fail
v=DMARC1;p=none;sp=quarantine;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

default._domainkey.xxxxxxx.

TXT

v=DKIM1; p=MI ...........hidden ,....

Received-SPF: pass (google.com: domain of george@xxxxxx designates xx.47.xx.xx as permitted sender) client-ip=xx.47.xx.xx;
Authentication-Results: mx.google.com;
dkim=fail header.i=@xxxxxx header.s=default header.b="UQyF6zZ/";

xxxxx hidden domain name

thanx in advance

 

[Sebahat.hadzhi]

Could you please double-check the DNS zone and confirm if there are other DKIM records for the domain name apart from default._domainkey.example.com? If there are, please remove them and give it another go. Could you please also confirm if you are using local or remote mail server?