Azure Search index is not updating when I publish changes to my QnAMaker knowledgebase

I have a Microsoft chat bot that is using a QnAMaker knowledgebase that is getting frequently updated due to still being in development. It seems that updates to pre-existing question and answer pairs are not being propagated in the Azure Search Index when changes in the QnAMaker knowledgebase are published.

What can I do to force the search index to update itself?

Thanks for any help!