I dont get the i-cube_lrwan V1.2.2 endpoint working for B-L072Z-LRWAN1

Everything seems to work fine in putty except the join, but the signal is not received by TTN, while it is received when i use v1.1.2 (https://github.com/drakkar-lig/st-lrwan). I changed the devEUI, appEUI and appKey.