Hartley, if you want to test it in your setup, the way to go back to a 1.4 version is via the USB upload. The document on how to do it is linked in the OS software section of the service area of the web site. I hope it is not too technical to give it a try. The OS file you should use is linked here: http://www.genoqs.com/downloads/OCT_OS_v14308.elf
Let us know how it goes. Thanks and cheers, Gabriel.