OK, this is odd.
I have a Maven project which contains several "modules". All of the modules resided on the same "base" directory level (and have the same "group ID" and parent).
Two of my modules share a similar naming convention:
When IntelliJ IDE (build Diana-9821) creates a new project from Maven project resources... it makes the second directory (pseditor-web-app) a child of "pseditor-web".
Furthermore, the "pom.xml" and other contents of "pseditor-web" are not visible in the project view... just the incorrectly nested "pseditor-web-app" directory.