Hi @Kobaton
I recommend looking at your Conditional Access Policies at https://aad.portal.azure.com/#view/Microsoft_AAD_IAM/ConditionalAccessBlade/~/Policies
You may want to exclude your account from the Conditional Access Policies that is blocking this. You can try searching Sign-in logs for the failure > click it > check which policy it is being blocked by:
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If this is helpful please accept answer.