I ran into the same issue but was able to retrieve the updated version by opening one of the temporary files left in the folder. The file had a gibberish name and an unknown file type, but I right-clicked it, selected Illustrator from the "open with" options (PC), clicked "open anyways" on a couple dialogue windows and the proper, updated version of the file opened. Success!
Thankfully I didn't delete the temporary files beforehand (which I often do). Regardless, I will be double checking my files save properly from now on.
I ran into the same issue but was able to retrieve the updated version by opening one of the temporary files left in the folder. The file had a gibberish name and an unknown file type, but I right-clicked it, selected Illustrator from the "open with" options (PC), clicked "open anyways" on a couple dialogue windows and the proper, updated version of the file opened. Success!
Thankfully I didn't delete the temporary files beforehand (which I often do). Regardless, I will be double checking my files save properly from now on.