Vega scroll locks up Maple

Purchased some vega's scroll today, and Maple locks up everytime I finish scrolling one of them. Screen just freezes, none of the keyboard keys work. After I quit the game, and re-enter the equipment has been scrolled properly.

Is anyone else suffering the same problem? I vega'd like last year and it was working properly.

I'm concerned because I'm using it in conjunction to Pam's song, and locking up the screen might make my Pam's song not kick in.