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Cura 2.7 will not slice with my previous retraction settings from 2.5

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I just recently updated my version from 2.5 to 2.7 so i could check out the ironing and the other new features. After updating if i go to slice a file it says the retraction settings are the issue. the only way to get the program to slice was to uncheck "enable Retraction" but now my prints come out covered in stringing hairs. what can i do to get my retraction settings back?

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More details please. Retractions work fine for me in 2.7. Maybe screen shot of the error? Maybe find as small an STL file as possible that still won't let you enable retraction? Maybe exit cura, delete everything (all your old stored profiles) in the %appdata%/cura and %localappdata%/cura folders.

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