I'm encountering the same issue with the latest
AstraSDK-v2.0.14-8dd7d5344a-20181210T213031Z-Ubuntu1604.tar.gz in Linux.
All other samples work, but the body tracking one shows a black screen.
Even the output of the
BodyReaderPoll sample is empty. It seems that
astra_reader_open_frame returns with timeout error.
Any suggestions to solve this would be appreciated.