Location jumps to wrong position

[zipav]

Description

The “My position” marker can be offset by ~100–200 m or jump between random points in open sky conditions.
Movement is not tracked continuously unless the user switches to another app (e.g., Google Maps) and back (“Google Maps trick”).
Track recording then contains missing trackpoints and straight-line segments between last known and current position.
In some cases, when the phone is locked and later unlocked, recording resumes only after reopening OsmAnd.

Steps to reproduce

• iOS Location: Always + Precise Location ON
• Trip recording: interval 10s, min accuracy 20m
• Go to an open area (good GPS), open OsmAnd, start recording, walk/cycle.
• Observe: position freezes or jumps; GPX later shows straight-line gaps (missing points).
• Switch to Google Maps (correct position), switch back → OsmAnd updates briefly, then may fail again.

Actual result

Location updates intermittently freeze, drift, or jump; GPX logging misses points and produces straight-line gaps until the app is reopened or “refreshed” by switching to another app.

Expected result

Continuous, stable location updates while moving (especially in the foreground) without needing to switch apps.
GPX track contains regular trackpoints at the configured interval without long straight-line gaps.

Your Environment (required)

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OsmAnd Version:
iOS version: 
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[Zirochkabila]

@zipav Please add screenshots or videos (if available) and specify the version of OsmAnd, OS version, and Device model.

[dmpr0]

Try to add activityType

• automotiveNavigation for Navigation using all type of Driving profiles: Car, Truck
• otherNavigation for Bicycle, Pedestrian navigation
• fitness for Track recording in all profiles except Airplane.
• airborne for Navigation and Track recording in Airplane profiles

[yuriiurshuliak]

OsmAnd 5.3.0 (5347)
iOS 26.3.1

During track recording on iPhone, OsmAnd may stop updating the current location correctly, which can lead to position freezes, jumps to an incorrect location, and missing track points with straight-line gaps in the recorded GPX track.

Steps to reproduce

1. On iPhone, allow OsmAnd to use Location Access: Always.

2. In OsmAnd, set trip recording to:

   • Recording interval: 10 seconds
   • Minimum accuracy: 20 m

3. Go to an open outdoor area with good GPS signal.

4. Open OsmAnd and start track recording.

5. Walk for some time while keeping OsmAnd open.

6. Check whether the position marker freezes, jumps, or stops updating smoothly.

7. Review the recorded GPX track for missing points or straight-line gaps.

8. While recording, lock and unlock the phone, then check whether tracking resumes normally or only after reopening the app.

Actual result

The issue was not reproduced. During testing, OsmAnd maintained stable and continuous location updates, and the recorded GPX track contained regular track points without freezes, jumps, or straight-line gaps.

[Zirochkabila]

This issue will be closed. As soon as we have new cases that help us reproduce the issue, we will reopen this issue or create a new one.