I agree that I’ve seen the same issue.
I just tried to edit some youtube links.
Sometimes it was possible to get it right by removing special arguments (such as #t=x.ym), and by wrapping the url with …
But it also seems that the forum software only accepts the first two youtube videos, all others are displayed as plain URLs.
I haven’t found an option in the admin section which controls this.
Found following option:
Maximum number of media files per post: Too many media files embedded on one page can potentially crash the browser.
However, I increased the number to 10
but instead of creating a new post, it is putting the text into my previous post, as an edit! (I am currently the last poster in the thread.)
ok, I disabled following option:
When a member posts twice within n minutes, once after the other in a topic they will be merged into one post. Enter the number of minutes to capture concurrent posts. Enter 0 to not use.
I can totally confirm that Samurai slicing the way to the solution part - just asked him about a strange sysex large packet problem and he had a solution within ca 5 minutes