@fourbfb you can try to debug with the following steps.
1- Temporarily deactivate other plugins to rule out conflicts, as another plugin might interfere with BuddyPress’s upload functionality.
2- Switch to a default WordPress theme like Twenty Twenty to check if the issue is theme-related.
3- Verify PHP settings such as upload_max_filesize and post_max_size are adequate in your php.ini file.
4- Use the browser’s developer console (F12) to check for JavaScript errors that might block the upload process.
5- Ensure that the profile photo and group icon uploads are enabled in BuddyPress settings.