Got the email. Tried again just to be sure, DOES NOT VERIFY.
The message is very simple this time:
and the signature is:
Gwv15fhExeFbkFbsAP+W6BYgQMCrm53hUXZLqOe+5tsYVbR91EsnuUSAY2QBv00sdmu40k7wJYLHurTLAL3VE9s=
In the last two tries, the message must be too complicated, and when it was pasted, some invisible stuff were added.