Validation is not displayed intially

**Describe the bug**
Opening the application doesn't display validation errors like audiofile is missing. Just when you enter the field the error is displayed.

**To Reproduce**
Steps to reproduce the behavior:
1. Open the application
2. Click on audiofile
3. Close the selection
4. See error that no audio file is selected.

**Expected behavior**
Validation errors should be visible right away.

