SeaHorse hangs Panel when trying to decrypt file

Hello ,

Let's say that we have a file that we need to encrypt , so you go ahead and click Encrypt and then SeaHorse will ask you to choose which PGP to use , if you don't have one then you will be prompted to make one , let's say that we have made the PGP key and we encrypted the key but we didn't save the passphrase in the password manager so you will be prompted to put the password so you can decrypt the file and see the content

But when you get prompted to put the passphrase to decrypt, then you decide not to put the passphrase but to cancel the process, you will be prompted second time to put the password automatically , I cancel it again and then the PC works just fine , but the whole menu is stuck , I can't click on Applications/Places/System , but I am able to click on the icons in the panel

But it's frozen , I need to logout and login again to be able to use the panel again

UPDATE : Even if not cancelling , putting the passphrase and unlocking the encryption will result in having the unencrypted file but still the panel freezes, And a logout/restart is needed to get it back working.

If I'm missing any information please tell me I would update

Thanks.

Ubuntu Mate 18.04.1 LTS
4.15.0-39-generic
Traditional Panel
Marco as Window Manager