[5/1 7:30 PM EST] UPDATE - Your reviews should now be visible in "Your contributions." Please tag a Google Moderator if you are still experiencing any issues and provide a timestamp and a screenshot. Thank you all for your patience in this matter.
I wanted to let you know that we are aware of the issue where your Google Maps reviews have disappeared. This may be happening on your mobile device and/or on Desktop. This is a high priority item that the engineering team is working on at this time. Rest assured that your content has not been deleted and when the bug is repaired, you should see your reviews return to their normal state.
Please keep an eye on this thread for additional updates.