The reappearance of address on ECAS happened to many people in the same day and also with the same change inside saying that " we sent you a letter on ..... to the following address ..... ; if this address is incorrect pleas contact us".
Many applicants have not received their letter by regular mail (including me). I received their notice by email.
I want to believe that VOs are working on our cases, but it seems impossible.
They are probably updating the software application of ECAS.