pa12 cf15 after filament change mid print bad quality

hello today i have printed a Part of pa12 cf and the First Spool who was printed nearly perfect. After the first spool I load the second spool of pa12 cf (fresh opened spool dryed 6h on 70celcius) and I get instantly bad quality on my print so I stop the print. Do anyone have an idea what reason it has? Thanks
IMG_9512.DNG18.09MB
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