From the acr logs found that ACR is calculating based on the 11 digits that the device is “external”, since external ACR will not put a monitor on that device.
This is why not recording.
2016-05-27 12:00:24,565 [TSAPIEvent-1] DEBUG com.swhh.csta.d.e - station 18476461300 onSnapshotCall=CSTASnapshotCallConfEvent
info=CSTASnapshotCallResponseInfo
deviceOnCall=ExtendedDeviceID
deviceID=18476461300
deviceIDType=explicitPrivateLocalNumber
deviceIDStatus=idProvided
callIdentifier=ConnectionID
callID=10383
deviceID=18476461300
devIDType=staticId
localConnectionState=csConnect
info=CSTASnapshotCallResponseInfo
deviceOnCall=ExtendedDeviceID
deviceID=T10383#2
deviceIDType=explicitPublicUnknown
deviceIDStatus=idProvided
callIdentifier=ConnectionID
callID=10383
deviceID=T10383#2
devIDType=dynamicId
localConnectionState=csConnect
2016-05-27 12:00:24,565 [TSAPIEvent-1] DEBUG com.swhh.csta.d.p - Conn=ConnectionID
callID=10383
deviceID=18476461300
devIDType=staticId
2016-05-27 12:00:24,566 [TSAPIEvent-1] DEBUG com.swhh.csta.a.a.ab - Creating new external 18476461300
2016-05-27 12:00:24,566 [TSAPIEvent-1] DEBUG com.swhh.csta.a.c.i - New Conn: Conn:3, call=10383 external 18476461300 /ESTABLISHED May 27, 2016 12:00:24 PM REC