[WARNING] Start of new pair positioning subtable; some pairs may never be accessed

Martin Silvertant's picture

Here are two of several messages I receive upon trying to generate fonts:

[WARNING] Start of new pair positioning subtable; some pairs may never be accessed: [a a.ss01 agrave.ss01 aacute.ss01 acircumflex.ss01 atilde.ss01 adieresis.ss01 aring.ss01] [y yacute ydieresis ycircumflex ygrave]
[WARNING] Start of new pair positioning subtable; some pairs may never be accessed: [r racute rcommaaccent rcaron] [o ograve oacute ocircumflex otilde odieresis oslash omacron ohungarumlaut] [C:/Users/user/Documents/FontLab/Studio 5/fontlab.fea 487]

It doesn't prevent me from generating the font but obviously something isn't behaving as it should. I have no idea what this message says, though I suspect it's something to do with the classes. Is anyone familiar with this kind of message and what it refers to?

Martin Silvertant's picture

I found the problem. Apparently I have some letters defined in multiple classes. When going to Tools > Kerning Assistance and clicking on the Yin Yang symbol you get a message stating in which classes the issues can be found.

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