GPS Info panel shows stale data from previously opened project

[RastoHu]

Description
When downloading and opening a project for the first time, the GPS Info panel displays data from the previously opened project. An app restart is required for the GPS Info panel to refresh and show the correct data for the newly opened project.

Environment
[x] Staging

Application (+ app version, build, operating system)

• Android app version: 2026.1.1 (777911), Samsung Galaxy A53 5G, Android 15
• iOS app version: 2026.1.1 (26.3.872011), iOS 26.0

Steps to reproduce

1. Open project Matej-test/test_external_receiver_world (this project shows values for Altitude and Geoid separation in GPS Info panel)
2. Download and open project Matej-test/test_external_receiver_martinique
3. Open the GPS Info panel — should show N/A for Altitude and Geoid separation when outside of the project area, but there are some values

Actual results
The GPS Info panel still shows Altitude and Geoid separation values from the previously opened project (test_external_receiver_world) instead of N/A. Restarting the app resolves the issue — after restart, the GPS Info panel correctly shows N/A for Altitude and Geoid separation for the martinique project.

Expected results
The GPS Info panel should refresh automatically when switching projects and display correct data for the currently opened project without requiring an app restart.

Screenshots or logs

Conclusion
Created by Claude and supervised by a human test analyst.

[Withalion]

This issue is caused by proj not being able to load new grids right away. We should inform user that restart of application is necessary to get correct values.

[PeterPetrik]

this proj reloading is quite obscure... maybe it would be great to check if Proj does not have new api to force reload? or develop it?