MapKit Diagnostics

Symptom-based MapKit troubleshooting for annotations, region jumping, clustering, search, and performance issues.

Symptoms This Diagnoses

Use when you're experiencing:

• Annotations not appearing on the map
• Map region jumping or looping
• Performance issues with many annotations
• Clustering not working
• Overlays not rendering
• Search returning no or wrong results
• User location not showing
• Coordinate system confusion (lat/lng swapped)

Example Prompts

• "My annotations aren't showing on the map"
• "The map keeps jumping back when I try to scroll"
• "Clustering isn't grouping my annotations"
• "MKLocalSearch returns no results"
• "My map overlay isn't visible"
• "User location dot isn't appearing"

Diagnostic Workflow

Start with the symptom you're seeing in the quick reference table, then follow the numbered diagnostic steps for that symptom. Each step narrows the cause and provides a specific fix.

Related

• MapKit – Anti-patterns and decision trees (prevents issues before they happen)
• MapKit Reference – API reference for correct usage
• Core Location Diagnostics – Location authorization troubleshooting

Resources

Skills: axiom-location