« Resolving Mortal Kombat 9's Desynch Issues, PS3 Patch Coming Week of July 4th »

Ed Boon addressed via Twitter today the de-synchronization issue that has recently plagued online play for Mortal Kombat 9. This is directly tied to a problem with original download of the retail exclusive pre-order Klassic Skins. If you've encountered this problem they posted up a fix for the 360 version of the game, and also mention that a patch is coming for PS3 the week of July 4th. 

We posted the instructions for the 360 fix below, directly from the Mortal Kombat Facebook page.

De-synchronization errors have been reported in online play of Mortal Kombat. The issues are specifically with the original downloads of the retail exclusive pre-order Klassic Skins. Anyone playing Mortal Kombat with the original pre-order skins installed will cause de-synchronization against anyone they play. Fixes are in progress for both platforms, with details below.

For Xbox 360
In order to fix the desynchronization errors on the Xbox 360, you must manually re-download the Klassic Kostume DLC files from the Xbox Live Marketplace. Re-downloading the Klassic Skins Pack will not fix the problem. You must re-download the original pre-order skin(s). Instructions for re-downloading:

1. Hit the guide button (XBox Logo button on controller)

2. Go to the right to the tab labelled "Settings"

3. Select "Account Management"

4. Select "Download History"

5. Select the pre-order DLC you wish to re-download.

6. Choose "download again"

If you have re-downloaded the Klassic Skins and are still experiencing desynchronization errors, it is because the person you are playing is still using the older skins. Both players must re-download the content to fix the issue.

For PS3
A patch is in progress to solve this issue for PS3 users. We expect to release the patch the week of 7/4. We will update this message once our timing is confirmed.