Ionic v4 : Ionicons (v5) appearing and disappearing

I upgraded to the newest version of ionicons (v5) and sometimes the icons do not render. It fixes itself if I was to close the app and re-open it but sometimes when it’s first loaded in, it works. Any ideas?

same issue on ionic 3 some time badges automatically hide during scroll

Bump. Issue still occuring

have you got solution for this issue