Mixamo Animation Retargeting

Having trouble…

I currently have a project in version 4.12.5 (cannot upgrade since it would cause issues with existing code)

I purchased the plugin and installed 4.16 (and 4.14) thinking I could migrate the new targeted “skeleton.uasset” to my existing 4.12.5 version project… however I cannot seem to migrate the new targeted skeleton.uasset to my 4.12.5 version. (it shows the file migrated folder if I look in windows but when looking at the folder in the unreal editor it shows nothing in the folder.

I installed version 4.14 too - thinking maybe it being closer in versions it would work… but doesn’t work either.

In addition to Migrating… I also tried “exporting” the skeleton - but creates a skeleton.COPY text file (not sure if theres away to get that to work - needs to be renamed? or changed a little to get it to work in another version?)

Any suggestions on how I can get the new skeleton into my 4.12.5 version?

is there a way to export it through fbx and bring it back in?

is there a way to edit the skeleton.uasset file (I opened it in notepad and can see the version - not sure if its setup to never work with previous engines?)

Thanks