- Embedding Chromium via WebContentsView causes native view to be always on top, requiring hiding and showing when overlays open.
- Zero-size views lose compositor surfaces; fixing by parking at 1×1 pixels instead.
- Long hides evict frames; restoring requires two-step size changes across event loop turns.
- React effect cleanup and dedup cache bugs can cause blank views by preventing proper bounds updates.
- Debugging must target the actual failing layer, as app screenshots may mislead about on-screen blankness.