How can I identify which chunks are causing the filename conflict?

Use the `--info` or `--verbose` flag when running Webpack. This provides more detailed output, including the names of the chunks that are attempting to emit the same file. Webpack's stats output (using `--stats`) can also be analyzed to pinpoint the conflicting chunks and their corresponding entry points or dependencies. Tools like `webpack-bundle-analyzer` can visually represent your bundle and help identify duplicate or overlapping modules.