hello, why in some projects, and not a few, I enter the project, I get to Bambu studio with it, and I click on slice flat and then it takes me out of Bambu studio and I get back to the project. I enter again, I start again and it takes me out again. Sometimes I have luck and the third or fourth time it sends to the printer, sometimes it doesn't. Does anyone know what the explanation is? Why does it take me out of Bambu studio? thanks.