Moved from the Creative Cloud to the InDesign forum. They will be able to help you here.
Check Edit/Keyboard Shortcuts/Product Area/Type Menu/Insert Break Character: Column Break and see what keyboard is assigned to it.
Edit: meant to say what short cut is assigned to it: Num Enter?
Windows Laptop? Some of them have both the enter keys mapped together, and changing the state of the Numlock will swap between functions. If that's you, edit the shortcuts so bothEnter keys are a paragraph break, and make a new shortcut for page break (Numpad enter is actually a column break, by default).