I’ve found all barn finds and restored them but according to the achievement I’m only at 93% so technically only 1 car missing but ingame it says I have all of them. What am I supposed to do now? Wanted to grind for 100% but guess that won’t happen anymore 
I currently have 14/15 Barn finds, only missing the one from buying the Castle. However, my progress is showing 80% instead of 93%.
I found & restored 2 cars at the same time, so assume that’s what thrown the tracking out. I know several people have this issue, so assume a fix will be on it’s way.
there’s a million of those who had this issue (including me). Devs will probably not fix it.
I have the same issue. Have found all 15 barn finds but only showing 86% complete. Was hoping the update today would fix it, but no such luck. Another note to the dev to fix it!