Holon dessert/ Pyramid

So when I left the pyramid I didn’t see professor Maple appear, so now I’m stuck and can’t get to regigigas. Does anyone know what I have to do? I restarted the game several times, and even looked if it needed to update or something like that.
edit: I did see Delta regi steel and Delta regi ice, but the guard still won’t let me pass…

did you get the magic carpet ?

yeah I have it

i think you have to leave the area and she is there if i remember correctly