Lost Layers after saving

[Thawk143]

Hi Guys. I am using Gimp 2.8.14 on Windows 10 and my projects keeps loosing layers after saving and reopening the project files. I save my files as .xcf and when I open it the next day there are several layers missing. The background layer and several pictures will be lost. The file size is still the same as the day before but several layers are missing. After a few attempts, Gimp will inform me that the file is corrupt.