You are running the demo-version of Icarus tried to save stuff and then reloaded a song. Please note that you can't save songs or patches with it. That's why there is 'Custom' and 'DEMOVERSION' in the file browser.
I checked out the sourcecode. This problem does only appear with the demo-version and in Cubase. It does not affect the full-version or other hosts. It appears when the GUI is set to huge in the demoversion in Cubase, the wavetable editor is opened and then closed again. I will fix it for the next update. You can ignore it.