Maybe I'm missing something here. But I have this issue where my dynamic content works fine when the email is in my inbox.... but once I hit Preview this Email on Browser, the dynamic content is replaced by the default option.
Demonstration on video below:
Step1 (sending myself a sample): Untitled: Nov 26, 2019 9:47 AM.webm - Google Drive
Step2 (testing the email): Untitled: Nov 26, 2019 9:49 AM.webm - Google Drive