[NTG-context] [LMTX] fonts problem (again)

Hi! Once again i'm unable to load my system's font which is working well with MKIV. i have followed the steps : export OSFONTDIR=~/.local/share/fonts:/usr/share/fonts:/usr/share/texmf/fonts/opentype/ mtxrun --generate mtx run --make mtxrun --script fonts --reload without success. This problem occurred to me since december 2020, i update LMTX weekly from the archlinux user repo (aur) binary. Any suggestions? -- Dr YAHYAOUI Mohamed Kaddour, cardiologue .