Hi there! I understand you're having trouble uploading an audio file in Wave on your laptop. Let's see if we can sort this out together.

First, may I ask a few questions to understand your situation better?

1. What format is the audio file you're trying to upload? For example, is it a WAV, MP3, or another format?
2. Have you experienced this issue with other audio files, or is this specific to one file?
3. Have you tried refreshing the page or restarting your laptop to see if that helps?

Once I have a little more information, I can guide you through some possible solutions!

I uploaded an M4A file and the session does not begin. I have tried restarting my laptop.

Thanks for providing more details! Since you're uploading an M4A file and it's not starting the session, let's try a few things. Here are some steps to troubleshoot this issue:

1. Use a Different Audio Format: Sometimes M4A files can have compatibility issues. Consider converting the audio file to MP3 or another widely supported format. You can use online converters such as Online Audio Converter for this purpose.

2. Clear Your Browser Cache: Sometimes a full cache can cause issues with uploads. Here’s how to clear your cache in WebKit on Windows:
- Open your browser and go to the settings.
- Look for "Privacy and Security" or "Clear Browsing Data."
- Select "Cached images and files" and clear it.

3. Check for Browser Extensions: Sometimes browser extensions can interfere with uploads. You can try disabling any unnecessary extensions and then attempting to upload again.

4. Rename the File: If you're still having trouble, consider renaming the M4A file to an MP4 extension. This can sometimes help with recognition issues.

5. Reboot and Try Again: After performing the above steps, it might help to restart your browser or your computer one more time to refresh everything before attempting the file upload again.

If you've tried all these steps and still face issues, please let me know, and we can explore further options or consider reaching out to higher-level support. Are you satisfied with the solution I provided?