bluetooth lowenergy - osx 10.11.5 - BTLE manufacturer data missing in advertisementData? -

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it seems upgrading osx 10.11.5 may causing manufacturerdata field of advertisementdata missing when reported centralmanager: diddiscoverperipheral: advertisementdata: rssi:.

it tends there if device turns on while scanning, if device advertising when scanning starts, it's unlikely present.

edit, more details:

what i'm seeing in cbcentralmanagerdelegate callback centralmanager: diddiscoverperipheral: etc dictionary passed method lacking key kcbadvdatamanufacturerdata if application launches after peripheral has been on (and therefore advertising) while. if peripheral turned on after application launches, key sporadically present approximately 1/3 of time 30 seconds, , disappears forever. (forever = @ least 6 minutes)

any ideas ?


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