Because your autorun never ends.
After those commands, turn on a self switch. Then add a second event page, conditioned by that self switch. Leave everything else on the page as it is.
Autorun events loop by default, and take away control from the player. So you have to end them in some way. One way is by going to another map (this is okay as long as you're never going back to that map again, otherwise the event will run again). The other is by giving the event more than one page, and making another page active.
Edit: don't double post (make another post when the last post is yours) - it's against forum rules. If you need to add something, just edit your last post instead.
Also, you've got some weird stuff happening there. Without being able to understand the language, it looks to me as if you have a 'blank' actor who's in the party, then you add the 'real' actor and remove the 'blank' actor. You don't need to do this. Just have your real actor set up, add them to the party in the System tab, and turn transparency on (also in the System tab). When you're ready for the actor to be shown, just use the Change Transparency command to turn transparency OFF. This is the way to have your character invisible during a start-of-game cutscene. Then you don't need to do any Change Party Members command at all, until you really want to add extra characters to your party.