Recently Duo wanted to make an arbitrary waveform excitation using the QIL cymac, but it wasn't working.  An excitation would die after 10 seconds or so, with awgtpman reporting that the data was too far in the future.

It turns out this was caused by a missing leap second in the RTS software.  It is now fixed upstream, and we're running a patched version of awgtpman on fb4, until the change propagates to the packaged version.