Hi jvnh,
We appreciate you reaching out to us. We understand that you are experiencing Bluetooth connectivity issues on your MacBook Air.
First, we recommend that you check if the issue persists when signed in on a different user account.
The article below can help if you do not have any other user account to test with.
Set up users, guests, and groups on Mac
If you are experiencing the issue when signed in on a different user account, we recommend that you check if the issue persists while on safe mode.
Below is an article to help guide you through the process.
How to use safe mode on your Mac
If the issue persists on safe mode, we recommend that you use the "contact Apple Support" link on the last step of that article.
Take care!