[Discuss-gnuradio] Strange UHD Error

Hi,

I'm using GNURadio with Python and all communication is handled over a socket server e.g. stopping and starting measurements. This have been working fine until now when I modified my GNURadio program to able to stream from two RX channels (Double UBX + X310). The error I occasionally get (sometimes works fine) is the following::
UHD Error:
    An unexpected exception was caught in a task loop.
    The task loop will now exit, things may not work.
    boost: mutex lock failed in pthread_mutex_lock: Invalid argument

Any ideas?

Best regards

Simon