Superbadge: Prompt Template Builder

I am on the second step of this Superbadge and have run into two separate issues. I have walked through this configuration in two separate developer environments, with the same issues: 

1. Prompt Template validation:  

When I create the specified prompt template (Translate Survey Input), I update the [Survey Input Field] with the dynamic value of Input.Fitness.Survey_Input__c using the 'Insert Resource' button. I test out the prompt and its working as expected. When I try to validate, I get the following error from Trailhead:  

2. Synchronous Flow error: 

I successfully add the Prompt Template Actions as well as the Update Records action to set the Translated Survey Field.  

If I keep this in the "Run immediately" flow, I get the following error when creating a new Fitness record: 

I

the fix is to make this entire flow asynchronous. When I switch the flow over to an async path: 

This works, but there is a delay for the updated Translated Survey Input. 

Any suggestions would be super appreciated