Navigate file doesnt find all files

Hi

I have a WebModule project .

When doing Ctrl Shift N and start typing the file name , not all files in the structure appear in the list.

This seems to be something new that has happened and I dont know how to solve this.

I tried creating a new project from scratch again (I thought something might be wrong with the idea ) , but I get the same issue

some files are found and some are not . even in the same folder , some files are found and some are not.

I am using IDEA 12.1.4

Need help urgently.

Thanks.