Why might Proximity fail on Android?

Proximity lives and runs on every user's mobile device.

It may fail because the mobile device itself is restricting the Proximity service and/or is not delivering events in a timely manner, or is not detecting the passage through all geo-fences.

Have you made all the settings indicated in the app so that Proximity can run in the background without restrictions? In the case of Android, there are some settings that you should carefully review and disable. On this website, you can see all the settings by selecting your phone's make and model: https://dontkillmyapp-com.translate.goog/?_x_tr_sl=en&_x_tr_tl=es&_x_tr_hl=es&_x_tr_pto=sc?_x_tr_sl=en&_x_tr_tl=es&_x_tr_hl=es&_x_tr_pto=sc

Otherwise, Proximity will not work continuously and these types of problems may occur.