USB Controller Not Working Anymore

[Gamerpro2020]

I was wondering if anyone can solve my problem.
When I first downloaded SMBX, I used my controller fine. However, when I booted it up on April Fools Day (yesterday), I found that I could not use the controller anymore. It works in other programs just fine, but not in SMBX. It won't even show the option to use the controller anymore. Please help!

My controller: http://powera.com/Products/FLAG_NEW/CPFA115536-01

I installed all of the drivers to make it run on my computer.

[Kevsoft]

I am not sure how your controller works, but it must use DirectInput.

My controller for example can be switched either to DirectInput and XInput.

[John The White Yoshi]

I have a REALLY old Xbox 360 or Xbox Controller and it has this DirectInput feature. The controller in looks like it does (and it's expensive.), so I have one question. Do you plug the controller in BEFORE you start SMBX or AFTER? That may be the problem.