Need help *Major Spoilers*

At the part When (SPOILER)lucca's mom is stuck in the machine and you need to enter the password(L1,O,R1,O). I have tried this pass a lot of times(around 20) but it will not work. I go straight into the room and then head to the sparkle. I press L1,O,R1,O but it doesn't work. So i try again but no avail. If you now what I'm doing wrong please help.

EDIT: I had no trouble with XABY(Triangle,O,X,Square)

First off, are you using an emulated version with a keyboard as your input?

My guess is either that's the case, or you're using a custom button configuration.

no its a PS2.

Nvm i found out you have to press X twice