Solved
I can't collect scavenger milestones. Please help.
I played Star Wars battlefront 2 offline for a few days and I did some campaign missions, and, on the prologue, I collected a collectable, A few days later I went online and wanted to collect all of ...
Although you don't say which collectible, sometimes you have to go to the screen with the crates to get (from a crate) what you've earned.
If that's not it, you might try clearing your cache.
