Hi Jake,
Thank you for the detailed explanation of the issue. We were able to reproduce it and it seems like there is an issue with screen resolution.
We are going to work on fixing this problem.
As a temporary solution we can offer you to resize the browser window while creating a new experiment.
To do this:
1. Press and hold down the “ctrl” button while you briefly press the “-” key.
2. Repeat this action several times until the "Next" button is visible for you.
In order to return your browser to the original zoom setting, press [Ctrl] + 0.
Hope that helps.
Have a great day,
Chorus Support Team