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Flutter Dev Discovers Silent Bug Discarded 4 of 6 Onboarding Answers for Months

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A developer building Lifemaxxing AI, a habit app, found that four of six answer options on a key onboarding question were being silently discarded instead of generating personalised tasks. The bug stemmed from a mismatch between how answers were stored in the app using semantic keys and how the JSON config referenced them using positional IDs. Rather than crashing or logging an error, the app quietly fell back to a default, making the issue invisible during normal use. The developer had originally moved onboarding logic into a JSON asset file to allow easy updates without new app releases, a decision they still consider sound. The discovery also revealed that three of the eight onboarding questions were never mapped to any tasks, a gap the developer acknowledged should have been a deliberate design choice rather than an accidental omission.

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