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Hi Xperiaz5prem,
Welcome to the community,
You are best to bring this up with the developer of your tracking app, as they should be able to address this.
Its important to note that, just because another make and model has 6.0 this does not mean they are they same, infact there are many variants of Android that run 6.0 and below.
Try uninstalling both app and google map. then install them again and try again.