Survival of the fastest achievement not unlocking [PC]

I ran the whole 69 laps of Spa via the showcase last night and the “Survival of the Fastest” achievement never popped. This was done on the PC version of the game.

Here are the details of the issue as requested on the FAQ:

Issue Details
• I did the Spa 100 Endurance Showcase, set it to extra long (69 laps), Pro Difficulty, cockpit view in the yellow Corvette, on an Asus GL702VS laptop, took approx. 2:45 mins, finished at approximately 10:45 (CST). Once the race was complete I got all the reward cars for leveling up as well as the car level increase. Everything looked normal minus the achievement. I then proceeded to turn on the Xbox One X to see if I could sign on there and get the achievement to pop. Still no achievement.
• Unfortunately I did not capture a screenshot or video.
• No error messages, just missing that sweet sound of the achievement unlocking.
• No real steps to avoid the issue as I didn’t expect it.
• Using an Xbox controller plugged directly into the laptop (long race, no sense killing batteries)
• Since there was no crash, I’m not sure a DXDiag would help, but the computer has plenty of horsepower and ran like a champ for the full race.
• Graphics driver: Nvidia GeForce v. 390.65
• Using quality settings recommended by the Geforce Experience driver, but that probably isn’t important.

I would greatly appreciate it if someone at MS or Turn10 could help me out here as this was a long race and I would hate to have to do it again, or worse yet cheese it. Thanks for the help!

Apparently you have to do it on the Xbox. I killed another chunk of time this evening and got the achievement, but this time I bailed on trying to get it on the PC.

sounds like you settings on pc are somehow blocking achievements
are you able to get any other achievements on PC

btw I got this achievement using a PC

I’ve unlocked achievements on the PC before, but it has been a while that I’ve earned one there. Maybe MS has achievements blocked on the windows preview versions. I do get all my credits and what-not there in-game, though. Oh well, I’ll just avoid it for big achievements like this in the future.

Doubt they have blocked them
Might want to check your settings
You need to turn telemetry on…not disabled …to get achievements
An update might have turned some required settings off