Because she was claimed as a dependent she is not eligible to receive the stimulus money. Dependents do not get the stimulus checks.
she is not; dependents over the age of 16 are not eligible. IRS FAQ:
A1. Generally, if you are a U.S. citizen or U.S. resident alien, you will receive an Economic Impact Payment of $1,200 ($2,400 for a joint return) if you (and your spouse if filing a joint return) are not a dependent of another taxpayer and have a Social Security number valid for employment and your adjusted gross income (AGI) does not exceed:
You are not eligible for a payment if any of the following apply to you:
You may be claimed as a dependent on another taxpayer’s return
(for example, a child or student who may be claimed on a parent’s return or a dependent parent who may be claimed on an adult child’s return).