Mayflash adapter problems (Dolphin)

[Advil]

My problem is that i cannot roll on the ground using the movement stick, i have to use the C-stick plus shield to roll while on the ground. the odd part is, i can airdodge just fine, and in subspace emissary and the original brawl iso the rolling works fine. Does PM touch SE files? is it a bad iso build?
Any help would be appreciated

 

[Advil]

Also, I tested a regular controller and it works fine. so I believe it to be a problem with the mayflash.