Try being a Browns fan for a year.
Ouch! You win!
I resolved these overlaping issue after creating some more panels into the repeating section.
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I noticed that an answer was marked correct, but the correct answer was not the original poster of the question. did the answer was marked correct answer your question?
I ended up having to redo the repeating table. I did it by adding the default CSS with the labels and text fields, "nf-form-input nf-section," rather than our custom CSS. Once that was put in, the nested repeating tables worked beautifully.