gitaarmike

Hi Everyone, I am the proud owner of a JTV guitar , today for the first time that I bought the guitar i wanted to do a string change. But the string wont stick/ lock in the bridge. How is possible? On all my guitars the strings lock in the bridge. I hope I am just being dumb (probably :p ) and there is nothing broken, Please help :). See the youtube videos below for what i mean. Greetings from the Netherlands https://www.youtube.com/watch?v=ON0tYx2fJaY https://www.youtube.com/watch?v=A9_3pGoOjRQ