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ChuckBuildsandClaude
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A game that was live in the evening was still being drawn as live the next morning. Two faults combined to freeze plugin visuals indefinitely. PR #291 added a call to plugin_adapter.invalidate_plugin_scroll_cache() so a plugin's own cached scroll image would be rebuilt from fresh data. That method was never implemented. hot_swap_content() wraps the call in a broad except, so every hot swap has raised AttributeError and been swallowed silently ever since — which is why the visuals it was meant to keep fresh never were. Continuous scrolling then removed the only path that reached it at all: should_recompose() and hot_swap_content() are called from the non-continuous branch of run_frame(), and continuous_scroll defaults to True. So on a default install the pending-update flags were set by the update tick, never consumed, and grew without bound. Together these froze content completely, because refetching is not enough on its own: the sports plugins' get_vegas_content() regenerates only "if the cache is empty", so take_next_group() kept receiving the same picture however often it asked. Fixed by: - Implementing invalidate_plugin_scroll_cache(). It covers both layouts — a helper directly on the plugin (stocks, news, odds-ticker) and one owned by a scroll-display manager (the sports scoreboards, which is the shape that produced this bug) — and clears cached_image and cached_array together, since the array is the image's numpy mirror. - Adding StreamManager.invalidate_pending_updates() and calling it from the continuous branch. It only drops the caches; the plugin recomposes when it next comes round in the rotation. process_updates() is wrong here: it refetches synchronously and merges into the active buffer that continuous mode bypasses, and hot_swap_content() rebuilds and repositions the whole strip, which is the freeze-and-jump this mode exists to avoid. Tests assert the fix rather than the implementation: 14 of the 17 new tests fail without it. Includes the wiring itself, since the regression was a call that was simply absent, and a check that the scroll position is untouched so this cannot regress into the swap's visible jump. All Vegas suites pass (355 tests). test_display_controller_vegas_tick.py still cannot be collected off-device for want of rgbmatrix, identically with and without this change. Co-Authored-By: Claude <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ