btkReadAcquisition() trap error "Label 'xxx' already exists in the entries' list"

[Bill Johnson]

Hi everyone,

I'm using the MATLAB try...catch...end construct around btkReadAcquisition() to successfully trap a number of file format errors in my c3d files.  However, I seem unable to manage the warning "Label 'xxx' already exists in the entries' list".  This message seems to be pushed to stdout/stderr regardless of try...catch and warning() on/off settings.  What am I missing?  

Thanks, Bill

MATLAB R2016b

Ubuntu 14.04.5

BTK v0.3.0