I can’t find any version that is different in meaning, so exactly what version are you using?
Interlinear-Greek to English word for word
7. one moreover to each of us has been given - grace according to the measure of the gift - of Christ 8. Therefore he says Having ascended on high he led captive captivity and gave gifts - to men 9. this moreover he ascended what is it if not that also he descended into the lower regions of the earth
Ephesians 4:7-9 Complete Jewish Bible (CJB)
7 Each one of us, however, has been given grace to be measured by the Messiah’s bounty. 8 This is why it says,
“After he went up into the heights,
he led captivity captive
and he gave gifts to mankind.”
9 Now this phrase, “he went up,” what can it mean if not that he first went down into the lower parts, that is, the earth?
Ephesians 4:7-9 King James Version (KJV)
7 But unto every one of us is given grace according to the measure of the gift of Christ.
8 Wherefore he saith, When he ascended up on high, he led captivity captive, and gave gifts unto men.
9 (Now that he ascended, what is it but that he also descended first into the lower parts of the earth?
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You’re simply reading something into it that is not there.
Captive cannot mean “Heaven” and nobody goes there before the first resurrection anyway.
Captive is still captive.