It's always exciting getting a new fighter in Super Smash Bros. Ultimate, but the newest entrant to the fray might have some unintended side effects. Players are reporting that the new Piranha Plant DLC fighter is corrupting save files in All-Star mode.
Piranha Plant was officially added to Super Smash Bros. Ultimate alongside yesterday's Version 2.0 update. But players began reporting to the unofficial @SSBUNews Twitter account that playing with Piranha Plant in All-Star Mode is corrupting their save files. One user reported losing 130 hours-worth of save data as a result of the bug.
happened to me, its legit. lost 130 hrs pic.twitter.com/sCxRDZYyXV— Xoana (@xoanagives) January 30, 2019
User Xoana says that although they backed up their save data to the cloud through a Nintendo Switch Online subscription, the original data was never saved. So, they lost their World of Light progress and Spirit Board collection as well.
Nintendo Life is reporting that not every player is experiencing this issue, but the possibility of losing all the data might not be worth the risk. You could back-up your save data to Nintendo's cloud storage, but that requires a subscription to Nintendo Switch Online.
Piranha Plant is a DLC fighter released for free as part of a promotion. Players who purchase Super Smash Bros. Ultimate between launch and January 31 can register their copy of Smash to receive a DLC code for the carnivorous plant. Piranha Plant is not a part of the separate $25 Fighter Pass, and will be available for purchase separately at a later time.