Importing Dialogflow ES Prebuilt Agent Never Completes

[myudkowsky]

Comrades!

I'm using Dialogflow ES. I'm trying to import a "Prebuilt Template" into my test agent - I want to see how what it looks like and how it operates. 

I'd expect this to be instantaneous, and instead I've been waiting about 20 minutes, and it has not yet completed.

1. If this is normal, how long should this take? 
2. If this is not normal, what errors might cause this long delay?

TIA!