Revvl 6 Pro Gmail attachments

Hello all, I just purchased a Revvl 6 Pro 5G this past Sunday and I'm having the same issue, I can't download any email attachments in the Gmail app. I used my Google one membership to contact Google technical support and the tech support specialist walked me through about 10 troubleshooting options and we were unable to correct the issue. Ultimately the tech support specialist referred me to T-Mobile (since they are the manufacturer) to speak with their software mobility department as we discovered that this particular phone model does not have a download manager app installed as a part of the stock firmware. This should be an easy fix if T-Mobile creates creates a patch and sends it as an update to all Revvl 6 Pro 5G device owners. I'm anxious to get this issue resolved. I hope T-Mobile will do something about this issue.