Season PR Stunts has never showed up for me, and in the meantime while playing the game regularly, I achieved 3 stars on every single PR stunt in the game. Now, Season PR Stunts still do not exist on my game and the achievement Overachiever is impossible.
It appears that the 7th November 2018 content update caused Season PR Stunts to show up, but I’ll have to wait 'til next season to see if I receive rewards from it and can unlock the achievement.
Any update on this? I haven’t seen a seasonal PR stunt in weeks, and I have completed all of the stunts in the game so far. Overachiever is literally the only achievement I have left to complete and I would like to get a chance to do it. Turn10/Playground please help me get 100% on your game.
I’m not seeing it for the latest Winter Season.
IDK if it comes and goes, but I’ve noticed that I see it after logging in after a season change. I high light it and notice my PB has already triggered the seasonal complete, then on subsequent logins I do not see it again.
@CRracer 912, you can be right. My fiancee has the same problem and when I saw your post, she told me the same. Two seasons ago sign didn’t appear on map and earlier she changed seasons being in game. Next season was OK, she played game after season changed. Now in winter same as earlier, season changed when playing game and no sign on map…
On my account I always play Forza late and didn’t have this problem.
I think I will write this to support, let them check this 
I sent in a support ticket on this one, where you can not complete the OVERACHIEVER ACHIEVEMENT
Here is my ticket below.
Created Today at 10:57 Last activity Today at 10:57
Assigned to RetroKrystal
Id #11667
Status open
Gamertag Yarrokon
When did this happen? November 11, 2018
Forza Title Forza Horizon 4
Platform Xbox One X
Bug Type Other Game Area Free roam
BUG: OVERACHIEVER ACHIEVEMENT
I’ve noticed that if you have completed a PR Stunt that becomes a Seasonal PR Stunt, you are not able to unlock the Overachiever Achievement, even if you get three stars in the event again. I’ve completed all PR Stunts and have not been able to unlock this Achievement.
This has happened over the past 4 seasons for me. I’ve posted this in the forum, one user said it was a known issue that may not be fixed, but I’ve looked over your known issues documents and all of your release / fix’s documents and have not seen any updates / issues in relation to achievements accept the Achievement for Barn Find(s).
If there is any additional information I can provide, please let me know and I would be more than happy to do so.
Thank you!
and first auto response.
Thank you for contacting Forza Support.
Your request (11667) has been received. We are currently experiencing a high volume of tickets. One of our Customer Advocates will get back to you in the order the ticket was received.
…and for some reason after 4 seasons I was able to get this to pop on the Current Winter Danger Sign. Which is odd, previous seasons I beat those with no issue and still the achievement didn’t pop, but for some reason last night it did. Almost took an entire minute after the jump for the Achievement to pop.