Hi there! I’m having this issue whith the Smart Kerning option. I don’t know how long do I have to wait. I left it for hours but never finished.
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Hello tomy, wellcome to this forum.
Please use the menu command “send a bug” inside of fontself maker. Tell them the problem and what your operating system is.
good luck.
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Thank you! I solved by closing Adobe Illustrator and opening it again.
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Hey there. I have exactly the same issue when I click the smart button…
Did somebody find any solution to that problem ?
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Hi! I restart the program Adobe Illustrator and tried again putting another number in the Smart kerning option. When trying with 80 for example it did’t work but when I puto 75 it did work!
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Thanks @tomycastiglioni. I tried different values, but it is always the same problem…
@franz was thinking that my issue came from a big amount of anchor points, but my letters are not complex at all…
So I’m still stuck 
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Hey all, this freeze can actually happen when there are lots of shape variants in a design, which blows the maximum amount of kerning pairs (above 12k).
To solve this you should try using the Smart feature manually on fewer characters: first use Smart in the Advanced > Spacing view to set the side bearings automatically, and then in Kerning view, use Smart but only on a subset of characters, like just the Uppercase and Lowercase, or apply it the select glyphs (you can view them all when loading a new font in the Live Preview, and paste them in the Kerning preview to force Smart calculations on that text selection).
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Thanks @franz. I try that.
It seems that and don’t have the same window as you. As you can see my only choice is “Smart Space”
Do I have to upgrade my plugin ?
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It worked @franz ! 
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@Art_Grootfontein This screen is the Smart feature related to spacing values only - just click on the Kerning button at the top of the screen to access the Kerning view:
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