It looks like the days of trouble for co-op gaming in Haze are over. We've found out that a patch has been deployed over the PlayStation Network to fix the problem.

Over on the Ubisoft forums, Ubi_Wuzzi, a Community Developer, announced that the patch for the game was already up for download:

An update is now available on the PSN to correct the difficulties encountered when inviting people into the Co-op campaign. All you have to do is turn on your PS3, launch the game, and accept the update.

After the auto-install, please go into “Select chapters” to continue your campaign. You will then start from the beginning of the last level you reached in the game.

Certainly some good news there for all the PS3 Haze owners out there. We suggest you download that patch ASAP so you can fully enjoy the various kinds of multiplayer play with your friends.