How would I know you were running 32-bit Cubase without you telling me? John asked a few posts above with you giving no answer.
So, when you installed the 64-bit EZD2 and opened that in standalone, what exactly happened?
Can you post a full pic of the current interface for EZD2? One that shows the version number in the lower right corner. If it's the latest version it should read 2.1.1.