Impossible to unlock Xbox achievement "Strength in Numbers"

Currently, on Xbox, the “Strength in Numbers” achievement is not unlocking after meeting the required conditions. The achievement description is “You joined an Xbox party and played Roblox.”, and before the bug was reported the requirements to unlock it were to play a Roblox game with a friend who is in an Xbox group chat with you.

System Information: This seems to be happening on all types of Xbox, but I personally tested on Xbox One Fat, Xbox One S and Xbox Series X.

Steps to reproduce (unfortunately they require two Xbox consoles, if anyone wants help verifying this PM me for my gamertag):

  1. Sign in to two Xbox consoles with two different accounts.
  2. Create an Xbox group chat with one account and have the other account to join it.
  3. Launch Roblox on both Xbox consoles.
  4. Join any Roblox game with one of the accounts.
  5. Have the second account join the ongoing game of the first account.
  6. This should have been enough to unlock the achievement, but it is not.

According to TrueAchievements (a community site that tracks achievements and syncs with Xbox player progress), the last tracked player to unlock this achievement did so on June 14, 2024, at 15:33 (the hour of unlocking is visible in the player profile).

Some extra points

I think it’s worth mentioning that some players (myself included) reached out to Xbox Support about this issue. One person actually received a somewhat more convincing answer, stating that after a developer analysis, on their words: “the issue originates from Roblox and the developers have the tools to fix it.” I’m pointing this out here because many players (again, myself included) tried reporting the issue through the Roblox Support form, but the response was that the issue is on Xbox’s side without further elaboration. I’m not trying to discredit the Support Team, but it would be interesting to know that a developer looked into the problem, rather than just a semi-automated support response saying they can’t help with the issue, even if it is just to get to the same conclusion.

Also, after browsing through topics in the forum, I found out that there are some difficulties in handling chat-related features and certain console functionalities due to privacy requirements and standards set by Xbox. So, I’m inclined to think that this may point that the problem is Roblox’s app sided as well.

Video reproducing the issue sent privately.

A private message is associated with this bug report

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Thanks for the report! We’ll follow up when we have an update for you.

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Hi, we spent a lot of time looking into why this achievement was broken back in the summer when this issue was raised. The Xbox API that we were using to get the Xbox party required for this achievement mysteriously stopped working, and we asked Microsoft about it and they also didn’t have a great answer for us.

We’ve talked about potential solutions to this issue, but we haven’t really decided on a way forward, so I don’t think this issue will be fixed in the near future. It’s likely that we will need to wait until we update to use the Xbox GDK to fix this achievement properly.

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