For that folder, it's going to be Automatic Folder Type Discovery
that is casuing your issue. This is when Windows will automatically change the folder template
of a folder to match the file type of the last file added or saved in the folder. Since this is your Downloads folder, you would be having all sorts of different file types saved to it causing it to change templates each time.
To stop this, you could use the tutorial below to set a default template to disable Automatic Folder Type Discovery
. Unfortunately, it will set it to be the default for all folders, but you will still be able to manually change the folder template
for each of them. Folder Template - Default
Hope this helps,