Hey All! I am a newbie to this all . I just received my Ender-3 V2 for my B day and trying to get this all set up. I have it all assembled and going good. I have a few questions/challenges. 1. my bed/table has some movement when adjusting to the printer nozzel. Is this notmal? 2 once i have adjusted the table and selct pre heat PLA the system turns off and goes back on again but nothing happens. also when i put in a model to print. the system turns off and on again, same thing.