HM_TRLR-s-433 synw wont work

hi guys,
I am using the HM-TRLR-s-433 modules for my F1A class aeroplane controller.
My problem is when I setup the SyncWord register, the module doesn’t care about that and receiving from different sync word module as well, even the syn length are different.
The modules are in Lora mode.
SynL=6
Synw: 4D4147303031. (“MAG001”)
Spr=2
Spc=0
Power=0
Cs=8
Node=0,0
Nid =0
Bid=0
Lrcrc = 1
Lrsbw =9
Lrsf =9
Lrcr =0
Lrhf=0
Lrpl =64
Lrhpv =10
Lrfsv=1638
Mode=0
Any idea?
Thanks, Tamas