NEM wallet is never displaying me the mnemonic

Hey guys, i held my XEM in Exodus (long before and during March 12) and i imported my XEM into the official 2.5.1 NEM Desktop Wallet via private key. So far so good, i see my XEM in my balance.
But when i’m trying to get my mnemonic (Services → Symbol Opt-in) it just says “Opt In has finished, please update your wallet to get the latest details”.
I’m not receiving any mnemonic.
I also tried it with 2.5.0 and 2.4.8 with no change. Same result with the Universal Wallet for the Browser.

How can i get my mnemonic for importing in the Symbol Wallet?

Thanks!

Pre launch optin is finished.
If you did not optin before 12th March you will be able claim post launch in a few weeks.