It looks like the element connection from one of the elements is not passing the data to the destination element correctly. Where can I investigate the actual data. Is that possible somewhere in slnetclienttesttool?
The elementconnections.xml file looks ok.
While checking the UI for above issue I found a side issue. I see a problem in the indexes shown in the Element Connections application. The indexes are not shown, while they are available in the file. I believe that's an UI issue. I'll be investigating that further in order to create an internal test setup
The elementconnections.xml file is indeed the configuration file where you can see the configuration. To verify what exactly happens and what the real value is, you can look at the element logging. In there you'll see which value and which index it's trying to use, you can both check this on the source and the destination element.
This kind of logging is only available on higher log levels of the element but I'm sure that it's available in the log everything (5) level.