Problem Statement/Rationale

I can't run a playground (to create a new db & collection in my Atlas cluster) after I make a change to the playground. 

Steps to Reproduce

1. Right click on connection
2. Select 'Add database...'
3. In the playground that opens, edit the database & collection constant names to the actual names you'd like in your cluster
4. [Next step would be to run playground, but this is where I run into issues]

Expected Results

Run playground, either by clicking play button or selecting specific lines & clicking 'Run Selected Lines from Playground' 

Actual Results

Both the play button & the 'Run Selected Lines from Playground' options disappear as soon as I make an edit to the playground

Additional Notes

I tried saving the playground before running it. This didn't change the situation. 

When I ran the playground without editing it first, it worked fine - but having to go back & rename the db & collection is cumbersome. 

Nothing I read in the docs indicated that I shouldn't be able to edit playgrounds before running them.