[Smush Pro] Smush after update to 5.3 doesnt delete originals

As written in title.

Before update to 5.3 – during uploading smush was deleting original images – which is very important for us.

After udpating to wordpress 5.3 it stopped deletingm, and old optin in configurationn disappered (it is replaced by some new features)

How can I set smush pro on 5.3 WP to do so?