Finally got a chance to see your video. I've seen that issue before.
Are you launching the games from within your FE via a batch file?
What Fe are you using?
I can't give you specifics without knowing that but let me explain what I think it is anyway.
typex_loader is not a persistant exe, and by that I mean it doesn't run the whole time the game is running. It quite literally loads the game, swapping out the memory addresses of inputs so that it's actually playable.
Most FE's freeze themselves and wait until the app launched exits before they come back. Well guess what? Be it via a batch file or directly via command line, what you launched was typex_loader, and it exited almost instantly. So your fe is still active in the background.
So we need to make an exe that will stay open until the games exit.
The easiest way would be to make a ahk (auto hot key) script for each game and compile it. Now you'll need the game's title bar captions, but here is an example script:
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RunWait typex_loader game.exe,,Hide
Sleep 5000 ;We want to give the game a few seconds to load before we monitor it.
WinWaitClose Blaz Blue
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All this is doing is making a false exe that'll stay running until the game closes, giving your FE something to monitor. Obviously I tested this one on Blaz Blue, replace that bit with the caption of the game you want to launch.
To get captions for games, just press alt+tab while they are running and read what it says in the taskbar. Ahk has some fuzzy logic to search for windows, but for best results make sure the caption is exact.
One of the nice things about this method is once you compile the exe, you can give it a nice icon and the game will essentially be like a pc game.
I hope that helps!
*edit* Adding a hide command hides that unsightly prompt when the loader is first launched.