I want to change the page icon (com.ibm.portal.PageIcon) in a composite application. But. It. Simply. Does. Not. Work.

Here are the steps, please enlighten me what's wrong:

1.) In 8.5.1: opened composite application editor, opened page properties, opened icon selector, icon icon list is being read and... nothing. No entry in the list, I cannot select an icon (yes, there is a PNG-icon in the app!).

2.) in 8.5.2 I don't have the CA editor installed, so I opened the XML directly. Searching for "PageIcon" revealed the following entry somewhere in the XML:

"com.ibm.portal.PageIcon">
               "" xsi:type="base:String"/>

 
I took the equivalent entry from another application and changed it to:

"com.ibm.portal.PageIcon">
               


No luck, Icon didn't changed.

3.) Then I looked for the section in the XML describing the page the application starts with. I found it and added

"com.ibm.portal.PageIcon">
             "nrpc:///C1256E980026EBBC/icon?file=youatnotes%5Cdevelopment%5Ccrm%5Cproduct%5Ccasetracker.nsf&name=ca_applogo.png" xsi:type="base:String"/>              


Again, no luck.

4.) I changed the URL in the property to:

"com.ibm.portal.PageIcon">
             "nrpc:///[rep_id]/ca_applogo.png?OpenImageResource" xsi:type="base:String"/>              


or

"com.ibm.portal.PageIcon">
             "notes:///[rep_id]/ca_applogo.png?OpenImageResource" xsi:type="base:String"/>              


Both without luck.

Please can someone share the missing link with me?

UPDATE 1. july 2010: I nailed it down. The icon selection dialog in the composit application editor works when I remove all image resources except one. In the app there are about 300 image resources, so it seems that the icon dialog has a problem with that amount of images. I made a reproducible case and sent it to IBM.