negative temperature from DKW2012 (RFLINK OVER LAN)

[tedmtl]

I have builded a rflink over lan, work fine and i can receive any RF data from my weather station mi-sol same protocol as DKW2012, the serial output show me the line :
20;01;DKW2012;ID=0085;TEMP=ffba;HUM=23;WINSP=0056;WINGS=006c;RAIN=004a;WINDIR=0004;
my other wired sensor give to me -5.5 degre in the same time.

but i can't get the temperture in domoticz, yesterday i got it when it positif ?

2016-04-03 09:22:02.464 (1wire) Temp (Température extérieure)
2016-04-03 09:22:26.895 Hardware Monitor: Fetching data (System sensors)
2016-04-03 09:22:27.729 (rflink_over_lan) Rain (DKW2012)
2016-04-03 09:22:27.733 (rflink_over_lan) Wind (DKW2012)