Eject All and UnmountassistantAgent

[macwish]

Eject All has been working without a hitch for me - except, since installing Mavericks, after completing ejecting all of my external drive partitions successfully, I get the following crash notification: "UnmountAssistantAgent has crashed unexpectedly." The crash does not seem to cause any lasting problems, because Eject All works the next time. I assume this is a problem of Apple's UnMountAssistantAgent (Version 4.0) and not an Alfred problem. Has anyone seen this?

 

MacBook Pro (early 2011), OS X 10.9, Alfred 2.1.