# Troubleshooting

- [When Fisheyes Aren't Contamination](/archive/field-notes/troubleshooting/when-fisheyes-arent-contamination.md): When It Looks Like Contamination—But It’s Not
- [Microbubbles in Paint Film](/archive/field-notes/troubleshooting/microbubbles-in-paint-film.md): Definitions, behavior, and causes
- [Microbubble Diagnostic Intake](/archive/field-notes/troubleshooting/microbubble-diagnostic-intake.md): Where did the bubbles originate?
- [Veneer Checking](/archive/field-notes/troubleshooting/veneer-checking.md): What It Is and How to Identify It