Getting an error as well:

Extension Errors Report
SketchUp: 24.0.594
OS: Windows 10
Ruby: 3.2.2

Extension: SoothZoom (2.1.1a)
Error: NoMethodError (undefined method exists?' for File:Class) C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom/extension_manager.rb:65:in block in require_all'
C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom/extension_manager.rb:63:in each' C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom/extension_manager.rb:63:in require_all'
C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom/main.rb:95:in <top (required)>' C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom/main_entry.rb:19:in require'
C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom/main_entry.rb:19:in <top (required)>' C:/Program Files/SketchUp/SketchUp 2024/Tools/extensions.rb:197:in require'
C:/Program Files/SketchUp/SketchUp 2024/Tools/extensions.rb:197:in load' C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom.rb:42:in register_extension'
C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom.rb:42:in <module:SmoothZoom>' C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom.rb:10:in module:AMS'
C:/Users/clayt/AppData/Roaming/SketchUp/SketchUp 2024/SketchUp/Plugins/ams_SmoothZoom.rb:9:in `<top (required)>'

First of all THANK YOU SO MUCH for this! This is saving me so much headache already.

It's not working for a couple of materials in one of my files. It WILL work in a new project if I apply those materials to surfaces and paste them in a new project... do you know why this might be? ie maybe it doesn't work with components?

2019 file attached

materialconsolidator-componentnotworking.skp