APK only works after launched with WIFI (if it has anchors)

So weird.
Working with spatial anchors, I deploy my APK to my Quest and if it is not connected to wifi, my anchors will never be instantiated.

Only when I am connected to wifi, and I run the APK, even if I don't instantiate the anchors... I quit the APK, then I disconnect from wifi, and then if I run my APK again, then all instatiated anchors will work correctly.

I store my anchors locally.

Why do I need wifi  for running an APK with anchors.

This drove me soooo crazy during a whole day

I would appreciate any tips
thanks