I'm creating an app that will be running on Alteryx Server. The process starts with the user completing an input template (Excel file with multiple tabs). I have a File Browse tool set up to allow the user to select their input file. From there, it is connected to 6 different action/input tool pairs. Three pull in sheets and three pull in named ranges.

The action tools "Replace a specific string" - each one replaces the entire file path EXCEPT for the sheet or range name. In this example, the entire path other than the range "Contract_Summary" is updated with the user's file.

Running as an app from Designer (desktop), it worked as expected and I proceeded to build the rest of the workflow. Today, when I uploaded it to the Server to continue testing the app with other users, when I browse to my input template file, it then requires that I select a sheet or range. It never required that when not running on the server and the app doesn't work if any of the options provided are selected.
Having 6 separate file browse tools is not feasible (adds unnecessary confusion for the user) nor is changing the input template file.
Any suggestions on how to get this to work on the Server?