disable_event_tracking() was called globally in GpuDqnTrainer::new(),
polluting the CUDA context for ALL subsequent operations including
other models (TFT, PPO). This caused test_tft_adapter_deterministic
to fail when run after DQN tests.
Fix: disable/enable only inside capture_training_graph(), not at
construction. The capture region is the only place where CudaEvents
are disallowed.
Result: 855/855 ml lib tests pass (was 854/855 with 1 flaky failure).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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