This is pretty horrible. I switched from using Unity's sluggish PlayerPrefs to PreviewLab's much faster PlayerPrefs system for saving all of the data. You'll notice loading your ship and levels will be MUCH quicker. Players used to experience lag for up to 10 seconds before being able to return to the main screen after saving, and some even had their game consistently crash.
I did not foresee this new system overwriting old data, and for that I'm sorry. But I promise this will be the one and only wipe ever for Roguelands. I'm sorry I couldn't warn you earlier, but this game will be much more playable for many users with slower PCs and the time it takes to save all of your inventory, storage, and ship data will be nearly 10 times as fast.
I want to apologize to all of you cadets who put forth a ton of work and time into your high leveled characters. I hope you understand the importance of this new system, and you can be assured there will be no more wipes ever.