Mismatching keystrokes IntelliJ IDEA after installing Scala plugin

Question

I just installed the Scala Plug-in for IntelliJ IDEA Community Edition (version:2016.1.3).

So, after the installation, when I type the following symbols, the corresponding symbols get represented inside the class definition of the editor.

" becomes @ ; becomes $ , becomes ? . becomes / ? becomes &

Similarly, a few more characters get printed like this.

The funny thing is, this happens inside class definitions and inside build.sbt files. (Could happen in other files too). Outside the class definitions, the keystrokes are working fine.

How can I rectify this?

This happens in .java files and also in Scala files.

I have installed Scala 2.11.8 and SBT 0.13.12. Using Ubuntu 14.04 LTS with Oracle Java Version 8 Update 61.

Answer 1

I am answering my own question here.

There was no problem with the keymap. I opened another text editor and typed randomly and there was no problem.

I uninstalled and reinstalled the application and the plugins and the problem disappeared. Apparently the problem is unknown. Something might have happened during the installation is what I infer.