I'm seeing a fair number of database throughput exceeded errors granting a bundle containing a set of stackable objects. The calls seem to be managing to grant some small percentage of the bundle (2-3 cards max) and then fails:
(721f) PlayFabError: DatabaseThroughputExceeded, message: Temporary storage issue, please retry request, details: , httpcode: 503, httperror: ServiceUnavailable, user: 91E8700F1214B3B6, request: PlayFab.ServerModels.GrantItemsToUserRequest