SSH over Gateway on iOS

We've recently started using RDM with the Server and Gateway. For the most part, I've noticed this works great, however ssh sessions don't seem to be working on iOS. If I connect via Windows, I get prompted to accept the Gateway fingerprint when connecting. On iOS, nothing happens. I can connect fine if I'm local, but not though the gateway. Is there something that needs to be done for iOS to connect? There's nothing in the application log other than it saying there were 24 bytes sent.