I have used all the available resources to look for this issue, but there isn't anything available. No user guide, troubleshooting page, document, etc.
However, I see that the CLUE version is available in full mode from the IVM website (the website is recommended by the original developers).
Replace the installed version and then repeat the process. Additionally, go to Help > About and note the developer's contact email addresses or phones and contact them regarding this issue.