1 min lesson
Reproducing the un-reproducible
Rebuild the sequence in "Reproducing the un-reproducible" from memory, ending with the check that proves the outcome.
Step 1 of 3
The bugs that reach an escalation point are the flaky ones - the ones front-line support couldn't pin down. Reproducibility is the skill that turns those into fixable tickets.
Two kinds of "can't reproduce" need two different attacks. Environment-specific bugs depend on something about the user's setup. Nondeterministic bugs depend on the model's stochastic output. Treat them differently.