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MMWAVEICBOOST: LED D9 on without power supply from USB

Part Number: MMWAVEICBOOST
Other Parts Discussed in Thread: IWR6843ISK, DCA1000EVM
Hi,
We are noticing a disturbing trend. Many of the mmWaveICBoost boards have LED D9 powered on when we provide 5V power through the barrel jack. These boards are unable to be flashed. The ones that have D9 turned off out of box function correctly.
  1. Do you see this problem with other customers?
  2. How do we fix this problem? We are not providing any USB power, just barrel jack power.
Thanks!