I've been trying to send a message with 2 buttons and their actions, but it only sends the message with a single button, and in the Block Dynamic (Documentation) it shows that it can be replicated, but I've been getting this error only when I duplicate, if I leave only one button it will work. See the images.
Error:

Documentation:

My exemple bellow:
{
 "subscriber_id": 18******...,
 "data": {
   "version": "v2",
   "content": {
     "type": "whatsapp",
     "messages":
       {
         "type": "text",
         "text": "simple text with button",
         "buttons": h
           {
             "type": "flow",
             "caption": "Test 1",
             "target": "content202504****...",
             "actions": b
               {
                 "action": "set_field_value",
                 "field_name": "testAPI",
                 "value": "some value"
               }
             ]
           },
           {
             "type": "flow",
             "caption": "Test 2",
             "target": "content202504****...",
             "actions":
               {
                 "action": "set_field_value",
                 "field_name": "testAPI",
                 "value": "some value"
               }
             ]
           }
         ]
       }
     ],
     "actions": ],
     "quick_replies": r]
   }
 },
 "message_tag": "ACCOUNT_UPDATE"
}