Categories don't sync from Magento to Algolia

Hi Everyone, Im Luan, an AEM developer.
I’m facing a problem about Categories don’t sync from Magento to Algolia.
On Magento, I have a product that don’t have any category


But when searching that SKU in Algolia, I can see the catogories of it.

I’ve tried to re-index that SKU but it didn’t work.
I assume that Algolia doesn’t replace category if that field is null on MDC.
Did anyone face the same problem as me and how to resolve it?
Thanks so much.