Cannot rename pages, javascript etc! Just updated to 4.5.4 [fixed in 4.5.5]

Pressing 'enter' key on my keyboard when editing a page name causes a line break in the page name (Design section of UI)

Same issue for Javascript, and I suspect some other areas.

I'm guessing it's related to the recent update allowing you to copy formatting (it's allowing line breaks in file names)

yes I am trying to 'enter' same problem

As much as I welcome the new update's features, this is a big problem so I really hope it is fixed very quickly! I may have to revert unless anyone discovers a workaround.

Thank you for reporting this! We released 4.5.5 with a fix. You can update to it right away.

Great news, thanks!