Auto Trace left some areas white instead of transparent

I have the Mac, iOS, and iPadOS versions. I’m brand new at vector graphics. I’m the secretary and webmaster for a nonprofit organization. The organization’s logo was a GIF that had some artifacts (almost like dust motes) and lines that had extra pixels making them not perfectly straight. I want our logo to be a clean, crisp, scalable vector graphic, good for all print jobs. I exported the transparent GIF to PNG with transparency, imported the PNG into Vectornator, and used the Auto Trace feature to vectorize it. The result is absolutely beautiful! The only problem is that some areas that are supposed to be transparent are now white, and I haven’t been able to figure out how to make them transparent.