René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Plugin crashes on macOS and Linux during project load due to UI call inside deserialization","articleBody":"## Summary\n\nWhen loading a project that contains a scatterplot plugin, the application crashes on **macOS** and **Linux**. The crash does not occur on **Windows**.\n\n## Root Cause\n\nThe crash happens during project de-serialization.\nSpecifically, a UI-related function is invoked as part of the plugin’s de-serialization logic.\n\nCalling UI code during de-serialization appears to be unsafe on **macOS** and **Linux** (likely due to threading and/or event loop constraints), and results in an application crash. On **Windows** this currently works, but this behavior is platform-dependent and not safe. \n\n## Technical Context\n\n- Crash occurs while loading a saved project\n- Plugin de-serialization triggers a UI function\n- UI interaction during de-serialization leads to instability\n\n## Expected Behavior\n\nDes-erialization should be:\n- Pure data reconstruction\n- Free of UI side effects\n- Platform-independent\n\nUI initialization or updates should occur after de-serialization, once the object is fully constructed and the UI layer is in a valid state.\n\n## Suggested Fix\n\nRefactor the plugin so that:\n- De-serialization only restores state\n- UI updates are triggered in a post-de-serialization phase\n(e.g., after the plugin is fully constructed and registered)\n\nThis would ensure platform-safe behavior and eliminate the crash.","author":{"url":"https://github.com/ThomasKroes","@type":"Person","name":"ThomasKroes"},"datePublished":"2026-02-15T11:04:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/224/Scatterplot/issues/224"}