We have a number of people who played on PC and Xbox 360 who during our patch deployment that had their pursuits altered. For most of those your pursuits will auto update once you start collecting stats again. For example if you had killed 23/100 Mutants with an Assault Rifle it might now show 0/100 but as soon as you kill one more it will read 24/100.
There are a small number of pursuits that may be permanently reset. We believe these will be minor pursuits and nothing that should be large or impactful.
All of the effected players above will be getting a gift in their claim items inventory to make up for this loss and confusion.