TEMPDB files not correct

On my SQL Server 2019 Enterprise Edition server, when I run select * from sys.master_files I see that *tempdb* has 8 data files and there are 8 data files in the folder. However, when I run select * from tempdb.sys.database_files I only see 1 data file. Also, when I select the properties of *tempdb*, and look at the files, I see only 1 data file. I can delete the 7 extra files, so they are not locked or in use by SQL Server. When I restart the SQL Server service, all 8 data files appear and the whole thing repeats. There are no startup scripts or SPs that run when the service starts. What is going on?