Hi @Toriyama
Updating SPFx packages can take some time to reflect on the website, depending on various factors such as the size of the package, the network speed, the browser cache, and the CDN configuration. You may need to do some additional steps to ensure that the changes take effect on the website, such as:
1.Clearing your browser cache or using private mode to access the website, to avoid loading old cached files.
2.Running the gulp clean command in your project directory, to delete all old internal build projects.
3.Running the gulp bundle --ship and gulp package-solution --ship commands in your project directory, to generate the latest package files.
4.Re-uploading and deploying the solution package in the SharePoint admin center.
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