Intellij GWT Super dev mode shows blank source code
A couple months ago I had setup IntelliJ GWT super mode and when I was using the Chrome Dev tool I could see the .java files in the "sources" tab.
Today however, all of the .java files of my project are completely blank, but everything that is not my project (for example package gwtupload.client) I can see just fine.
What can cause this? Is there something I changed code wise without noticing?
My .gwt.xml file is as such:
<add-linker name="xsiframe"/>
<set-configuration-property name="devModeRedirectEnabled" value="true"/>
<set-property name="compiler.useSourceMaps" value="true"/>
<set-configuration-property name='xsiframe.failIfScriptTag' value='FALSE'/>