Si Hai version seems to try to drive all displays simultaneously as if one

[clarksnc]

Hi,
I've beeing trying the firmware version for the Si Hai clock and it looks to have great potential but it seems to be driving all the displays simultaneously, so once configured it counts with the seconds being displayed in all the displays, then when it gets to a ten rollover you momentarily get whatever digit should be in the tens and then all the displays count to 9 again and so on.
Similarly in configuration of it displays the same thing in every display (which I originally assumed was intended).
Any ideas - I've not compiled the whole lot myself yet to start trouble shooting?
The version I installed was via the upload page at https://www.nixies.us/projects/elekstubeips-clock/elekstube-ips-v1-3/
Thanks