Hi @TudorAmarie ,

It sounds like there might be a couple of different factors causing the dropdown menu issue. Here are a few things you could check:

1. Browser Cache: Sometimes, cached files can cause strange behavior. Try clearing your browser cache or using an incognito window to see if the issue persists.

2. Browser Extensions: Some browser extensions might interfere with form functionality. Disable any extensions you have and check if the dropdown works.

3. CSS/JavaScript Conflicts: Even though you mentioned you didn’t add any additional CSS or JavaScript, it’s possible that there’s a conflict with existing code. Inspect the element using the browser’s developer tools (right-click on the page and select 'Inspect') to see if there are any errors or conflicting styles.

4. Form Library/Framework: If you are using any third-party form libraries or frameworks, make sure they are up-to-date. Sometimes updates can fix these types of issues.

5. Responsive Design Issues: Since the problem only occurs on the desktop version, it might be related to a responsive design issue. Check the media queries in your CSS to see if there’s anything that could affect the dropdown on desktop.

6. JavaScript Errors: Open the browser’s console (F12) and check if there are any JavaScript errors when you try to interact with the dropdown. Errors here could give clues about what’s going wrong.

If none of these solutions work, providing a code snippet or a link to the form would help in diagnosing the problem further.

Hope this helps!