Solved
Why am I getting an invalid YouTube url error - Email Editor 2.0?
There error appears before I even get a chance to enter dimensions. Is this a template issue? Template is Snowbunny (Marketo Starter Template)
Jenn_BakerAccepted solution
Level 2
Nov 17, 2016 4:45 PM UTC
Decided to try one more thing before sending to support. For anyone running into this issue. I noticed the domain for the sharing url is youtu.be. I pasted my sharing url into the browser. Then copied the youtube.com url that resulted. Posted that into my template module and bada-bing!