iOS - issue with rematchWithCompletionHandler in Sandbox

Question

I have the following code:

   if(tappedItem.match.status == GKTurnBasedMatchStatusEnded){
        [[GameKitHelper sharedGameKitHelper] findMatchWithViewController:self delegate:self debug:false  invite:tappedItem.player];
        return;
        NSLog(@"Participants %@", [tappedItem.match.participants description]);

        [tappedItem.match rematchWithCompletionHandler:^(GKTurnBasedMatch *match, NSError *error)
         {
             if (error) {
                 NSLog(@"%@", error);
             }

             else
             {
                 [[GameKitHelper sharedGameKitHelper] setMatch:tappedItem.match];
                 [[NSNotificationCenter defaultCenter]
                  postNotificationName:ShowGameScreen
                  object:tappedItem.match];
             }

         }];
    }

I've got a number of people Beta testing it via TestFlight with sandbox enabled, but for some reason I get the following error when trying to rematch:

{GKServerStatusCode=5121, NSLocalizedDescription=The requested operation could not be completed because the player is invalid., NSUnderlyingError=0x17045cdd0 "The operation couldn’t be completed. status = 5121, Invitation from: 224002977 to: 225851510 is not allowed because they are neither friends nor have recently played"}

The match was ended properly, so it's not that:

[_match
        endMatchInTurnWithMatchData:data
        scores:scores
        achievements:nil
        completionHandler:^(NSError *error) {}];

I'm thinking this is an isolated issue with Sandbox, but unless I can test it I'm not confident that it will work in the once released.

Edit #2:

Here's the tappedItem.match object:

    <GKTurnBasedMatch 0x174250200 -
matchID:0049f124-b8c3-43d8-9964-beaf58af69f8
bundleID:--- REMOVED ---
status:GKTurnBasedMatchStatusEnded
message:''
creationDate:2015-06-24 23:12:31 +0000
currentParticipant:(null)
participants:<GKTurnBasedParticipant 0x174205450 -
playerID:G:225851510
status:Done
matchOutcome:Won
lastTurnDate:2015-06-24 23:12:32 +0000
timeoutDate:(null)>,
<GKTurnBasedParticipant 0x174205460 -
playerID:G:224002977 (local player)
status:Done
matchOutcome:Lost
lastTurnDate:2015-06-24 23:16:56 +0000
timeoutDate:(null)>
matchData.length:295
matchDataMaximumSize:65536
exchanges:(null)>

So as you can see, the match was only finished a few hours ago. This works as expected as long as they are friends, but I need to test the rematch functionality before I can put it live.

Edit #1:

I get the same error code when I use findMatchForRequest:

GKMatchRequest *request = [[GKMatchRequest alloc] init];
    if(player != NULL)
        request.recipients= [NSMutableArray arrayWithObject:player];
    request.minPlayers = 2;
    request.maxPlayers = 2;

According to the error, "they are neither friends nor have recently played", yet they have played recently.

the participants of the _match is as expected, which is how it knows to invite 225851510 for example. — Nico, Jun 19 '15 at 16:24
Even if I do a standard invite using request.recipients= [NSMutableArray arrayWithObject:player]; it has the same issue. — Nico, Jun 23 '15 at 11:32

score 1 · Accepted Answer · edited May 23 '17 at 11:51

I am grasping at straws here, but your edit looks similar to a problem I wrestled with trying to build the array of nextParticipants at the end of a GKTurnBasedMatchTurn GameCenter: endTurnWithNextParticipants not advancing. It didn't give me a coherent error, it just kept sending the turn back to the same player. The root seemed to be: Game Center does not like it when you pass it pointers to non-mutable objects that it previously sent to you.

I had to change

NSMutableArray *nextPlayers = (NSMutableArray *)theMatch.participants;
..some sorting logic deleted for brevity...
[theMatch endTurnWithNextParticipants:nextPlayers
                          turnTimeout:GKTurnTimeoutDefault
                            matchData:updatedMatchData
                    completionHandler:^(NSError *error)
{

To:

NSMutableArray *nextParticipants = [NSMutableArray new];
for (GKTurnBasedParticipant *participant in theMatch.participants)
{
    ...some sorting logic deleted for brevity...
    [nextParticipants addObject:participant];
}

[theMatch endTurnWithNextParticipants:nextParticipants
                          turnTimeout:GKTurnTimeoutDefault
                            matchData:updatedMatchData
                    completionHandler:^(NSError *error)
{

Your code blocks don't show where you're getting player from, so it's not clear to me if these are new or re-used objects. I'm wondering if this code

if(tappedItem.match.status == GKTurnBasedMatchStatusEnded){
    [[GameKitHelper sharedGameKitHelper] findMatchWithViewController:self delegate:self debug:false  invite:tappedItem.player];

and this code

if(player != NULL)
    request.recipients= [NSMutableArray arrayWithObject:player];

are the problem. What happens if you try creating copies of the player and pass that to the rematch and findMatch calls?

Interesting, I'm not sure that's the problem I'm facing but I'll have a look and see if that helps. Edit - Nope. It all works fine if they are friends. The problem is when they're not friends, according to the error I haven't played a game with the person I'm rematching. I'm almost convinced this might be a Sandbox issue unless someone else can shed some more light. — Nico, Jun 24 '15 at 23:25

iOS - issue with rematchWithCompletionHandler in Sandbox

Edit #2:

Edit #1:

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