First things first, I apologize to post 3 posts in a row on the "Technical" forum.
I had switched to Colemak Mod-DH.
Since I saw a lot of versions of DH, I didn't know which one to download, so I used Microsoft Keyboard Layout Creator (MSKLC) to duplicate it myself, and it worked, except for one thing.
The keyboard shortcuts seem to follow the vanilla Colemak positions!
Why is this happening?
Even the Youtube J (backward 10 seconds), K (stop), L (forward 10 seconds), and M (mute) follows the vanilla Colemak!