Mailgun: Email Forward not Working?

I'm using Mailgun in an app I'm developing. Sending email works fine and now I'm trying to set it up to receive incoming email.

I set things up per the Mailgun docs, for catch-all auto-forwarding to my usual email address. I then sent a test email to myName@myDomain.app. (It's a .app domain name).

The email didn't bounce, but it didn't arrive at the forward to address either.

Here's how I have the MX records set up on NameCheap:

Here's how I have the route set up on Mailgun:

What am I missing?

Here is how to forward email to another email via mailgun:

1- Click “Create Route.” In the form that follows:

2- Select “Match Recipient” as the “Expression Type.”

3- Set the “Recipient” as the email address you want others to send mail to (e.g., “info@example.com”).

4- Under “Actions,” check the box next to “Forward,” and enter your personal Gmail address (e.g., “info@gmail.com”).

5- Set a low “Priority,” such as 1.

6- click “Create Route.” Emails addressed to “info@example.com” will now be forwarded to “info@gmail.com.”