Embed Flash not working

[NeonFlash]

I am trying to embed Flash videos from Youtube on my SMF Forum. I have enabled the option to embed flash in the Admin panel settings for Posts.

The code for embedding looks like this:

Code Select Expand

[flash=640,480]https://www.youtube.com/watch?v=xxxxxxx[/flash]

However, in the post it is only displaying a white rectangle and the video doesn't load. I have tried in different browsers and they have support for Flash as well.

[Kindred]

I thought that YouTube dropped flash support a long time ago...

[vbgamer45]

I have an embed mod that support youtube https://custom.simplemachines.org/mods/index.php?mod=2681
No bbcode required just put the link into a post