That number looks like a "case" number, i.e. a problem ticket. That is not a bug ID.
Meraki does have its own internal bug tracking system, but customers are not privy to those details. You can either request to support that they leave your case open and notify you when the issue is fixed, or you can monitor the release notes of firmware releases to see when that issue is fixed.
My preference is to leave my case open with support have them notify me when the issue is resolved.