I am having the same issue. I did find ambient design in c:\users\[%username%]\AppData\Local\Packages\663BD856.ArtRageVitae_ssve hnbfdb2tt\LocalCache\Roaming\Ambient Design\ArtRage\Content\Tool Presets

I don't know if the numeric before ArtRageVitae will be the same. This is where all the data for ArtRage Vitae are located. You used to be able to change that location, but I can't find it in Vitae. I may just go back to ArtRage6 since the only improvement I am using is the higher zoom on tools.

Name:  tool preset location.JPG
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Don't know if the picture came through.