Where I am with this.
Tried Fix Inde
Republished ID Manager
Built 3 test apps 1SqlServer and 2 Mysql.
Published one of each on my CURRENT ACCOUNT which I changed the App Pool to ASP.net 2/3.5
Both apps work fine CRUD but NO temp folder in the uploaded files list.
Published remaining Mysql app on A NEW 60 DAY TEST ACCOUNT wiith the AppPool set to 2/3.5 sp2
The temp file was present and the Excel download worked in the app. So it's not an InDe issue I suspect.
So, logically, it's a Smarter issue, and to be fair, they are engaging and testing.
Earlier apps published have the temp folder and work as expected, the only thing which changed was going to Win 10.
I have tried creating a folder called "temp" in the apps where the file list doesn't show it, but it makes no difference no matter what permissions are allowed.
Next option is to start another trial and load the Db with data and see what happens.
Is there anything which would prevent a "temp" file being uploaded in one account or not another?