I tracked it done to it being this and here is the fix
packages/oil/classes/generate/scaffold.php Lines 85 to 92
// Either foo or folder/foo
$view_path = $controller_path = str_replace(
array('_', '-'),
'/', //DS, change the DS to '/' that fixes the problem, see below same code.
\Str::lower($controller_name)
);
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