Mcpack/addon not importing

Hello why does my minecraft does not import any mcpack/addon file i use my file explorer to open and it does open to minecraft but after that nothing happens the import pop up does not show up and i tried many times and it dosent works,i tried using another file explorer but its still the same i tried deleting it and download back nothing changed i can still import packs yesterday but now i cant because everytime i open a mcpack/addon file it opens to minecraft and nothing happens no pop up of import starting i went to google and search for this issue and found nothing and i seen afew reddit post about this issue but no one replies a solution for fixing so pls mojang help me out thank you