GPS location switching between tablet location and mock location

Support
1

1. What is the issue? Please be detailed.
Using ODK collect latest version with a BT GPS to use a Garmin handheld GPS to map plot polygon. Use a geotrace activity that allow-mock-accuracy = True. Every couple of seconds, the form widget switches from handheld GPS to tablet GPS for 3/4 seconds then comes back to handheld GPS for 10seconds.

2. What steps can we take to reproduce this issue?
Just open the activity and wait

3. What have you tried to fix the issue?
we didn't try to deactivate the tablet GPS maybe it helps but i don't think this is possible without deactivating the all location service.

4. Upload any forms or screenshots you can share publicly below.

1 Like
2

Did the same workflow have a different behavior with a previous version of Collect? That is, is this a new issue after an upgrade or is this your first time testing this workflow?

Could please also share what version of Android? What is the tablet make and model?

1 Like
3

Thank you for your support.

We have been using an fork of ODK from 2020 and this behavior wasn't present. Now this is the first time that we test the latest version with ODK v2025.1.5

Test is done with Android version 14 on Samsung Tab A7 Lite SM-T225

See video https://drive.google.com/file/d/19P6Gv8DJ5vZePNa4NkZGeembRuWkT97D/view?usp=sharing

4

Thanks for reporting this, @OlivierVernin. I'm not sure yet, but this could be a bug in Collect. @dbemke can you please try to reproduce this? Try first with a GPS spoofing app.