Hi everyone,

I'm developing a custom PythonPart for reinforcement labeling in Allplan 2024. To troubleshoot the issue, I created a simple test script called "UltraMinimal" that just shows a message box when loaded and responds to mouse clicks. However, even this basic test won't execute.

**The Strange Part:**
✓ Built-in example PythonParts work fine (Label with pointer, etc.)
✓ When I copy example folders to my Library\PythonParts, they work
✗ My test PythonPart with identical structure doesn't work

**My Setup:**
Both files in same folder (like working examples):
```
Library\PythonParts\UltraMinimal\
├── UltraMinimal.py
└── UltraMinimal.pyp
```

The .pyp references: `<n>UltraMinimal.py</n>`

**What UltraMinimal Does (for testing):**
- Shows a message box on load: "SUCCESS! Script is loading!"
- Creates an interactor that responds to mouse clicks
- Shows another message box when you click in the drawing
- Basic structure: check_allplan_version(), create_element(), create_interactor()

**What I've Tried:**
- Verified structure matches working examples exactly
- Checked UTF-8 encoding
- Tried different path formats
- Multiple Allplan restarts
- Compared with ReinforcementExamples\Labels examples

**The Question:**
Why would built-in examples work from Library\PythonParts but not my test script using the same structure? When I click on "UltraMinimal" in the library, absolutely nothing happens - no dialog, no error, no response.

I've attached both files. The end goal is to create a reinforcement labeling tool with automatic positioning and collision detection, but I can't even get this simple test to run.

Any insights would be really helpful!

Thanks!