Hariho utya progaramu mubikoresho byo guhuza Ashalt byerekana ko ibikoresho byo kuvanga bivanga hamwe na blade yashyinguwe murwego rukomeye rwimvura. Nubwo iyi progaramu yakurikijwe, uzi impamvu bikorwa?

Birumvikana ko hari impamvu. Niba ibibuno byibikoresho byo kuvanga Asfalt byashyinguwe murwego rukomeye rwicyiciro cyagenwe kandi utangira, imbaraga zayo zizaba nini cyane, zishobora gutera impanuka kuri moteri na blade. Kurundi ruhande, ntibyaba bitemewe kugirango uhitemo moteri no gushushanya ibyuma bishingiye ku mbaraga zo gutangira muriki gihe.
Inzira yukuri ni ugushiraho umwanya wijimye wibikoresho byo kuvanga Ashalt biruta icyiciro gikomeye cyicyiciro cyagenwe, ariko kandi ni ngombwa gusuzuma ko ibice by'ibice biri munsi ya blade nabyo birashobora guhagarika buhoro buhoro mbere yo gutangira imashini.