Mario doesn't want to walk anymore! Please help me (and him)!

I need help at one of my costum levels! Half year ago I downloaded SMBX and everything went pretty good! But somehow now I have a annoying problem: In some Events I wanted to use player controls so that Mario walks automatically in a way and after my level got bigger, I wanted to test my level (I didn't changed anything on these events and before everything was good), but suddendly, while I was watching Mario, he just stopped walking! He doesn't want to walk for 10 seconds anymore! After a second he stopps walking and then you can control him how you want! When this event is over and the next shell come (where he has to walk in a different direction for some seconds), he starts doing it, but then he stopps again! He always walks only a lil bit and then he stopps, also when he shell walk much more! Do you have an idea why this happens? What can I do? It's already the second time this happens, BUT all the other levels with their events with player controls still work! Only two levels have this annoying problem! Please help me! I googled through the whole Internet, but I was the only one with this problem... (I hope you understood my problem. I'm german, and as you sure noticed, my english is not so good) ...Thanks for reading and if you have an idea please help me!

Hmm,I think You Should Re-download Smbx Or Simply Check The Events

No, the player controls, when checked, are the controls that Mario cannot use.