For the feminine dual, only nominative ذَوَاتَا from the second set is recorded as occurring in the Qur'an; the first set ذَاتَا/ذَاتَيْ is stated not to occur there.
For plurals, both masculine and feminine have two sets, but the second sets أُولُو/أُولِي and أُولَاتُ/أُولَاتِ are stated to occur more often in the Qur'an.
This is a usage statement, not a claim that the other listed forms are ungrammatical.
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For the feminine dual, only nominative ذَوَاتَا from the second set is recorded as occurring in the Qur'an; the first set ذَاتَا/ذَاتَيْ is stated not to occur there.
For plurals, both masculine and feminine have two sets, but the second sets أُولُو/أُولِي and أُولَاتُ/أُولَاتِ are stated to occur more often in the Qur'an.
This is a usage statement, not a claim that the other listed forms are ungrammatical.