UPDATE:
- Removed the null placeable reference in top down demo. Should work again. Updated demo uploaded grid_building_demo_project_3.2.1
- Added a test to check demos for null placeable references on the UI.
- Moved testing folder from addons/grid_builder_gut_testing to test for clarity. These tests validate that the plugin should run correctly and shouldn't be needed in your actual project (but feel free to copy them in and run them with Godot Unit Test (GUT) if you know how)
The gut testing 'addon' is just for running unit tests within the demo project to test the real addon's functionality (I probably will just move this to a folder called test in the demo project in the future) I will check the mentioned collision problems and update the empty / null placeable in the demo asap.