During June 2025, Yoyoyod focused on maintaining stability in the pytorch/FBGEMM repository by addressing a performance regression related to kernel migration on AMD hardware. They reverted the migration of TBE UVM cache kernels to FBGEMM_LAUNCH_KERNEL after identifying throughput issues during training, prioritizing consistent performance across deployments. Using C++ and CUDA, Yoyoyod applied debugging and performance optimization skills to implement a targeted rollback, ensuring production systems remained stable while a corrected solution was developed. Their work included documenting the issue, outlining next steps for reapplying the migration, and establishing a plan for comprehensive re-testing after addressing AMD-specific concerns.