When in the "Develop" module I can see the edits Ive made. Once I click on the "Library" tab, my image reverts back to the original, unedited image. When I export it, it exports the original image.
OK, I just did that and unfortunately it did not change anything :/
Please create new Catalog in Lightroom, import images to it and do few adjustment on it and check if you see the history stays there after coming of Develop Module.