java.lang.NullPointerException?

Hey guys,

I seem to be getting an issue whenever i try and 'find an attribute in behaviors' (find in behavior), or in assigning a region to a 'enters' block. I get this:

"java.lang.NullPointerException
   at stencyl.sw.app.doc.Workspace.getDocumentForResource(Workspace.java:791)
   at stencyl.sw.app.doc.Workspace.isResourceOpen(Workspace.java:853)
   at stencyl.sw.editors.behavior.ActorAction.chooseType(ActorAction.java:196)
   at... and so on (log below)"

Hopefully it's something simple n_n.

I'm running windows 10 by the way if it makes any difference.

Log below.
Please help.
Thanks all
cheers

Still having this issue. i tried to uninstall/re-install, and still no change.