April 2025 (ls1intum/Artemis) focused on reliability and user experience improvements. This period delivered two targeted changes that provide clear business value and technical robustness. Key feature delivery: Build Agent Resilience Test Coverage – added an integration test that simulates multiple Docker client failures during image inspection to verify the build agent can recover from transient network issues and complete the build, reducing CI flakiness and increasing pipeline reliability. Key bug fix: Tutor Progress Bar NaN Handling Fix – introduced getUpdatedPercentage to validate progress values, defaulting to 0 when NaN or zero denominators occur, resulting in a more reliable and user-friendly UI for tutors. Overall impact: strengthened CI reliability, improved tutor UX, and enhanced test coverage with traceable commits, supporting higher confidence in deployments and daily operations. Technologies/skills demonstrated: test automation and integration testing, resilience testing, UI edge-case handling, code quality and maintainability, Docker-related testing, and clear commit hygiene.