Managing conflicts with Sketch and Abstract

The team and I have recently started using Sketch and Abstract, and while for the most part we can see the value in it, there's some confusion around how it's handling conflicts. I should say that it's possible this is all completely normal, but we just can't find an answer anywhere.

What we have noticed is when merging back to the master, we get a conflict screen that shows changes to symbols that no one has touched. Say, for example, there's a series of symbols dedicated to forms. Team A hasn't touched them (not that they know of) and team B hasn't touched them (not that they know of again), yet they're flagged up as conflicts.

When comparing the two between each other in the conflict screen, there is zero difference.

Has anyone experienced this at all? Would appreciate some insight.