With sales of over 2 million units in its first week of release in the UK, there are a lot of people playing the new Grand Theft Auto 5 Game.

Unfortunately for Rockstar games, many of these players have reported finding bugs in the game.

There is a glitch in the game that can cause cars to lose their upgrades or disappear when parked in a garage.

This is frustrating players as the upgrades cost (virtual) money as cosmetic features and new engines are expensive.

"We have received some reports about problems with cars and garages, particularly after upgrading and then completing a mission, and are looking into this now," explained Rockstar. "Unfortunately, we do not currently have a workaround to recover a car if it is missing."

Rockstar recommends that you not park your car in a garage, drive cars already in a garage, or use a default vehicle with a character other than the one who bought the upgrades for it.

"Also please note that vehicles saves in the garage of one safehouse may not show up in the garage of a different safehouse."

GTA forums have also indicated that the new GTA game is crashing older models of Xbox 360 consoles. There have been complaints of constant crashing, mostly on models manufactured between 2006 and 2008.

Initial sales of the games has made Rockstar over $1bn and the profits look set to rise as over 3.5m copies of GTA 5 have already been pre-ordered in the US alone.