Aperture starts generating previews on launch with El Capitan
After updating from Yosemite to El Capitan, every time I launch Aperture it begins generating previews for my entire 94k-image library, which makes everything sluggish until I cancel the operation. This with the "New projects automatically generate previews" preference unchecked. I even left it running overnight, but in the morning it still had 80k+ images left in the queue. Anyone else experiencing this? Solutions?