Error "Unable to load metadata for the column" Occurs When Using a Parameter to Switch Excel Files in Tableau Prep Builder

In Tableau Server 2025.3.x, when a flow output is published with Hyper format it defaults to "Extract.hyper" and the output file path is missing.

After upgrading Tableau Server from 2025.1.x to 2025.3.2 or later, Tableau Prep flows using TabPy with SSL fail at runtime with an SSL error.

Tableau Prep hangs at Splash Screen due to apostrophe in Windows User Profile username