I have been digitizing features and organizing them into feature classes for the past month. The last time I worked with them was on Monday, but now a couple days later on Wednesday, a large portion of them have turned into file geodatabase tables. Has anyone had this issue before? This happened once when I exported a single layer from an MXD into a new geodatabase, and my co-worker mentioned that it showed up as a file geodatabase table on their computer. This time, I'm using their computer (the past month I had been working with the feature classes on my own computer) and I'm running into the issue on a much larger scale. I don't want to re-create these features, as it took me tens of hours the first time. It looks like something on their computer (we're using the same version of Arc) is the cause of this, but I can't figure out what it is, why only some of the feature classes have become file geodatabase tables, or how to turn them back into feature classes.