FCKeditor.Java Server Browser: "Invalid Folder Name" on created subfolders

[CnEY]

In the Resources Browser (accessed via the Browse Server button from the Insert Image dialog), I can create subdirectories within the image folder, but if I try to navigate into them, I am presented with a JavaScript alert saying "Invalid folder name".

Checking my local filesystem, the folder was indeed created. I get the same result in the browser if I create the folder from the filesystem itself.

I took a look at what file handles the servlet seemed to be grabbing using Sysinternals Process Monitor, and it appears it might be wrongly attempting to grab, for example, 'userfiles/image/test/test' instead of just 'userfiles/image/test'.

Environment: FCKeditor 2.6 with FCKeditor.Java 2.4 Beta Tomcat 5.5 Windows XP Pro SP2 Reproduced in IE6 and FF2

This is reproducible for me using the 2.4 beta demo WAR's samples. FWIW, I attempted reproducing the same issue using FCKeditor 2.6 on an apache httpd setup with PHP, and it did not occur there using the PHP samples.

TIA...