I have tried what you suggested. The firewall is down from both sides, and for testing purposes, I'm allowing all traffic from both sides in the Security groups. I have tried the VPN troubleshooter as you suggested but the result shows the VPN Gateway and connections healthy as seen on the screen..
Also, I repeated the whole lab leaving all objects in East US (Azure and AWS) because at the beginning I was using Central Canada for Azure
I think that if the tunnel is up and running I'm facing a problem with the routing ... I'm following AWS and Azure docs but maybe this is the part that has the issue
Adding to the above, you can also enable a packet capture using Network Watcher for the VPN Gateway to troubleshoot this. Please refer to this document for more details. Thank you!
@Pelaez, Marcia Any update?