Rockstar has confirmed they are working on a patch to fix some problems with the multiplayer mode in Red Dead Redemption. Since the game was released in the US on Tuesday, players have found some glitches, such as invisible guns, hats, cougars and horses. Rockstar released a small update earlier this week to sort out system link issues.

“We’re aware of the issues some people are experiencing on multiplayer and we’re working hard to fix them,” Rockstar said. “If you’re having issues please email RDRSupportteam@rockstargames.com. We are also actively on the forums helping people with any questions they may have about the game.”

Here’s a video of the invisible horse glitch: