illustrator import 10% size bug
After exporting a multiple-art board illustrator file to individual illustrator files, the new files import to after effects at 10% of the correct size.
It is the exact same issue as described in detail here: https://community.adobe.com/t5/after-effects-discussions/illustrator-files-importing-at-10-size/td-p/11464768
There would appear to be a problem with exporting from large-sized canvas to individual artboards, which can't be corrected from within illustrator. Currently the only fix would appear to be copying and pasting the contents of the illustrator document to a new file.

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Carlos Morales commented
the problem is in the illustrator document, somehow the scale is bugged, I fixed this saving into legacy format, then adjusted the artboard to the correct size and resized the vectors to the correct scale....