When importing another Adventurer's Skills Assignment
from Menu > Skill > Skill Upgrade/Add-on,
select "Import Skill Sigil Settings" to import both skill and Skill Sigil settings.
① Tap "Browse Skills Assignments" at the bottom of the Skill Upgrade/Add-on screen.

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② From the list on the left, tap the magnifying glass button,
then tap "Import" or "Import All Assignments."

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③ Select the "Import Skill Sigil Settings" checkbox, then tap "Import."

※ This imports both skill and Skill Sigil settings.
※ Skill Sigils can only be imported when both the Skill Sigil name and effect values are identical.