Extra tracks added automatically when re-opening files

Hey,

First post, but I made sure to search and use the FAQ before asking.

I’m producing an audiobook, so I’m using all mono tracks, one track per chapter. Yet, for the last couple chapters that I went to edit, I’d open the file and find that there would be extra empty tracks added that I know I didn’t add myself. Has anyone else experienced this and, if so, is there a solution yet? (if it actually is user error, what am I doing wrong?)

Specs-

Audacity: 2.3.0
Windows: Version 10.0.17134 Build 17134
Mic: Yeti
Anything I forgot that might help: ask!

Thank you,

MisterAndrsn

What exactly is this file?