In my weapon blueprint I am doing a line trace to get what I shot at, and then applying damage, decals, particles, etc. This worked in 4.7, and initially in 4.8 it still worked. After changing collision setup, and changing it back to exactly same settings, line trace no longer works for characte…

That’s totally okay, I understand. I’m going to resolve this post for now, then, until you get some more time. Once you do, reply here and we’ll reopen and investigate further. Thanks!