Previously, I was using RocketChat version 4.0, and the announcement section allowed me to use scripts to bold and change the font color. However, after upgrading to version 6.9.3 using Docker, I can no longer use scripts for the announcement section.
I have tried version 6.9.7 as you suggested, but unfortunately, I encountered the same error. For your reference, I have attached screenshots from both version 3.13.2 and version 6.9.7, showing the issue.
I would greatly appreciate any further advice or insights you might have.