Here are a couple thread from community members that address this:
I finally discovered what was going on with mine. When I originally installed Turbotax, it picked up my previous file from my Windows File backup location, so it continued to save everything in that location, not the actual active file location. I just have to remember to check that next year.
Here is a community thread that includes how a user found a solution: https://ttlc.intuit.com/community/taxes/discussion/re-tax2023-file-disappeared/01/3315633#M1220199