Hi there!
Try going into my plugin parameters, and change the PCE to another thing. Maybe it is just a conflict of the escape code/keyword used to execute the play common event function.
But it's kinda unlikelly both plugin would work with each other, since both change things on the message functions. I guess Visu one adds not only new escape codes, but also a lot of other message stuff. And because of this, and also obfuscation, it's hard to know what they are doing and find a fix for it.