Hi @Shane Reeves ,
You can find and remove orphaned feature first:
//Find the orphaned features
Get-SPFeature | ? { $_.Scope -eq $null }
//Delete the orphaned features
$feature = Get-SPFeature | ? { $_.Id -eq “{GUID}” }
$feature.Delete()
Then copy feature from 15 to 16. You can find feature folder in C:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\TEMPLATE\FEATURES
Please remember to back up files in 16 then paste files into it.
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