Alpha Channel glitch

I am experienceing a glitch I believe, this had not happened until CC23 and is present in CC24. When exporting an alpha channel graphic from After Effects to use in Premiere, the asset works great until I turn off my computer. Once I reboot my system and get back to editing in Premiere all of my alpha channel graphics exported from After Effects have this strange sparkly edge (image below) which should not be there. The only way I've been able to remove this is to re-export the same graphics from After Effects and replace them in Premiere which is increasingly time consuming. Has anyone experienced this? Am I doing soemthing wrong?