[werk_ag]

So I believe something to do with the fact the WD goes haywire if it receive data out of it's storage/display range?

Hello,

I don't touch in the v1.4 software since last August, but it's possible that the v1.4 WD software has the described problem.
I really recommend you to upgrade to v1.5, it have very significant improvements over v1.4 software.
Follow the upgrade sequence as described by Shred on the post above, and all should goes well.

Power off all units, always upgrade the TX unit in first place, then power on the RX unit and upgrade, and for last the WD unit.
TX unit should be already working with v1.5 when upgrading RX software to v1.5

Any problem, please report. Users feedback is the best way to solve eventual bugs or problems.

Thank you