Hi !
As soon as the Factory preset is saved with the "Save As" button, it is saved as a separate User Preset.
Once saved, the preset should be detected by the Preset converter scan. Is it ?
Once converted, all what you have to do is open the new plugin version, and open the preset browser.
The preset should have be automatically imported and should be available in Banks > "the preset's bank"
Best Regards
Edouard