Hi Jason,
Please try this
https://medium.com/@vstram/is-it-possible-to-downgrade-a-mendix-project-file-c1b194382c1c
I found a way to make it work.
1. download your module.
2 unzip it with 7zip.
3. use the MpkTool found here:
4. edit the meta data.
5. run the project that you just changed to what ever version.
6. export the module now in that version.
7. upload it into your project.