**REGRESSION INFO** 1. Worked in Aspire 9.0.0 **INSTALL STEPS** 1. Clean machine: Win11 x64 23h2 2. Install VS 17.14 P1 3. Install Aspire 9.1.0 GA (Apply Feed) 4. Install Docker/Podman **NOTE** 1. This issue reproduces for both 9.0/8.0 framework. **REPRO STEPS** 1. Create .NET Aspire Starter App > .NET 9.0 (Standard Term Support) > Aspire 9.1 > Create 2. Right click solution > New project > Azure functions > FunctionApp1 > .NET 9.0 Isolated > Http trigger > Check the "Enlist in Aspire orchestrations > Create. 3. Build and run. ACTUAL The "--port 7235" is duplicated  EXPECTED The text should not be duplicated.