There was no data on the pipe to read. CA_Poll() said there was.
CA_Poll() indicated an event on the pipe between the signal handler code and the get...process message loop of the main process. The Juke_Box custom server tried to read a message from this queue, but found no data there. This can indicate an error in the Juke_Box custom server, or in the custom server CA_Poll() call.
If this problem persists, contact Blueworx Support.
White (error_id = 20501)
Log, System Monitor