The documentation URL which opens from “Help/Browse Matinee Documenation…” (http://docs.unrealengine.com/latest/INT/Editor/Matinee/index.html?utm_source=editor&utm_medium=docs&utm_campaign=help_menu_asset) isn’t valid.
Howdy ,
Thank you for the feedback regarding this issue. It seems that the URL is linked wrong in the editor. I have entered Jira Ticket UE-22694 into our Database so that we can get this issue fixed. At this time, I am unsure as to when this fix will be resolved and implemented, but I will be sure to keep you updated as I know more.
If you are looking for the Matinee documentation still, you can locate that page here: Animating Characters and Objects in Unreal Engine | Unreal Engine 5.1 Documentation
Please let me know if you have any additional questions regarding this issue.
Thanks and have a great day!
-Sean G