Ideavim writes letter "u" instead of adding a line when typing (hitting return button)

Question

In Android Studio 3.5.3 (using Ideavim 0.55) when in insert mode I hit return, it types the letter "u". How do I disable it?

Here is my .vimrc file: https://github.com/tomasbaran/My-Bash-Setup/blob/master/.vimrc

Answer 1

Found the issue: a typo in my .vimrc file: Had to remove the "u" that shouldn't be there.