Hi, AprilED
Welcome to the Microsoft community.
Thank you for your love for Bing and Copilot. Regarding your issue, please first use the feedback button in Edge, Bing, or Microsoft Start to report the problem to the relevant developers. After that, you can try using the Copilot app and the Insider version of Edge to see if the issue can be resolved (the language feature might not be available recently).
Become a Microsoft Edge Insider | Microsoft Edge
You can also try changing your network environment to see if the problem is caused by a specific network environment.
Best regards
Tommy Jin | Microsoft Community Support Specialist