In Spoofax 1.2, content completion is sometimes based on an old analyzed AST, resulting in no proposals (or possibly wrong proposals). It is possibly a race condition.

This video demonstrates the issue: http://youtu.be/0p-IDq5o91Q

When I inspect the ast that is the input of editor-complete, then I can see that it is sometimes indeed an old version.
I have the issue on both Linux and Windows. Building to .jar or .ctree does not make a difference.

Submitted by Oskar van Rest on 16 October 2014 at 00:12