Worked on the ruffle-rs/ruffle project to address a critical issue in AVM2 by correcting the getChildByName method to enforce case-sensitive lookups, aligning behavior with the SWF specification. This change improved the reliability of asset loading and reduced inconsistencies across platforms. The solution was implemented in Rust, with a focus on Flash development and AVM2 internals. Comprehensive regression tests were added to ensure the fix’s durability and to prevent future regressions. The work was delivered through focused, well-documented commits, resulting in enhanced test coverage and safer deployments, with no related regressions observed in the project’s test suite.