YouTube Help Needed!

invalid@example.com (WoodGlue), WoodGlue
Sun, 13 May 2018 21:12:09 +0000
Samsung Chromebooks

Help!

When I visit YouTube, the videos play fine, but when I post them to a chatroom I frequent, when I click on the YouTube link, all I get is a square box, no other info. Nothing plays.

On my former Chromebook (I just broke it) I'd never had any problems playing the YouTube videos that were posted to that chatroom.

What should I start looking at? My Adobe Flash player is up to date, anything else?

Mine is a Chromebook 3: Version 67.0.3396.26 (Official Build) beta (64-bit)

Thanks