*Steps to reproduce:*
# Download attached project and open in Unity
# Open the URP Converter >> Window >> Rendering >> Render Pipeline Converter
# Select the Material Upgrade module
# Click on Initialize And Convert button

*Actual results:* Conversion Complete with Errors message will be displayed in the Render Pipeline Converter

*Expected results:* Material should be converted to URP material

*Reproducible with versions:* 6000.0.36f1; 6000.2.0a3

*Tested on (OS):* 
MacBook Pro (16-inch, 2021), CPU: Apple M1 Max, Memory: 64 GB, macOS: Sonoma 14.6.1 (23G93)

*Notes:*
* I was using  Legacy Shaders >> Particles >> Additive(Soft) shader. But reproducible with other Legacy shaders as well