“Processing.app” can’t be opened because Apple cannot check it for malicious software

Today I downloaded the newest version , but when I open the processing.app , it showed a window like this .

" “Processing.app” can’t be opened because Apple cannot check it for malicious software."

I feel puzzled . Did anyone met the same problem when they open the app in a Mac platform ? Is it normal ?

Are any other Mac users seeing issues with notarization on Catalina?

Yes @jeremydouglass I too get the same error

See setup
Version 10.15.5
Saw a similar post suggesting that Dev Beta 5 fixes it

Still get error
Processing.app” can’t be opened because Apple cannot check it for malicious software
This software needs to be updated. Contact the developer for more information.