Recording in Google Meet was disabled in early 2022. A license will need to be added to your account, if it hasn't been already. I will look into that.
Some things you can check...
1) Make sure you are not logged into any other google/gmail account at the same time. If you do have another google/gmail account, check to make sure it didn't get saved there by accident.
2) Upgrade your Browser
The outdated version of the browser may have unfixed issues. Regardless of whether you are using Google Chrome or other browsers, you need to update your browser to the latest version. Here we will take Chrome as an example to demonstrate how to update the browser.
Step 1. Open the Chrome browser, and click the menu icon located in the upper right corner, click Help > About Google Chrome.
Step 2. The browser will automatically start to check whether your browser has an updated version. If there is, it will automatically start downloading.
Step 3. After the latest version of Chrome is installed, you need to click Relaunch and Chrome will restart.
Step4. Then log in to Google Drive again and check if there is an error in processing the video.
3) Clear browsing data and cache
The accumulated data and cache in the browser will slow down the running speed of the web page. Cleaning up the browser is an effective way to solve the problem that Google Drive video upload is still processing.
✎Note: Clearing all cookies in your browser may cause your account to be logged out of many websites. If you want to access them with your personal account again, you need to log in again.
Step 1. Open the browser, click the menu icon, and then select More tools and Clear browsing data.
Step 2. Enter the Basic tab, select All time for the time range, and check Cookies and other site data and Cached images and files. Click CLEAR DATA.
4) Reconnect your Google Drive account
If the video is still being processed in Google Drive, then you can try logging out of your Google Drive account and then logging in again, the Google Drive server may re-establish a connection to that video. Please follow the steps below:
Step1. In your Google Drive interface, click the avatar icon in the upper right corner and click Sign out in the pop-up window.
Step 2. Go to the Google Drive website, enter the correct Google Drive account information to log in, revisit your video and check that it works properly.
Do a test recording and see how it goes.