Format Mismatch Error when sending video header through WhatsApp API

I'm testing sending media headers through the WhatsApp API. But I keep getting the following error:

{     "error": {         "message": "(#132012) Parameter format does not match format in the created template",         "type": "OAuthException",         "code": 132012,         "error_data": {             "messaging_product": "whatsapp",             "details": "header: Format mismatch, expected VIDEO, received UNKNOWN"         },         "fbtrace_id": "AVPT6EiX3RemyP3uv4S36FZ"     } } 

I'm using a video URL to send the message and confirmed the video is publicly viewable. But I also got the same error when using the video link in the template. I know that there is a Resumable API for uploading the media, but that is not what I'm testing for here.

Any help would be appreciated.

For reference, this is the template:

{             "name": "vid_test",             "previous_category": "UTILITY",             "components": [                 {                     "type": "HEADER",                     "format": "VIDEO",                     "example": {                         "header_handle": [                             "https://scontent.whatsapp.net/v/t61.29466-34/380066992_950204086818012_8956032979900394560_n.mp4?ccb=1-7&_nc_sid=8b1bef&_nc_ohc=pmivIdgTvrAQ7kNvgEgxK28&_nc_oc=Adg2vVNVfN1TlUWzFmJxHpa830uVJRRCSKsooFiDp0E_AQ7gLbB-RIGSlx8UNvM0cXw&_nc_ht=scontent.whatsapp.net&edm=AH51TzQEAAAA&oh=01_Q5AaIFBxPaJzBmN9IaDMHWuIw-w8fQX3uHngw2A_qNyhKBVw&oe=666BB20F"                         ]                     }                 },                 {                     "type": "BODY",                     "text": "tesing {{1}} and use code {{2}} to get amazing discounts on testing videos.",                     "example": {                         "body_text": [                             [                                 "Message content",                                 "MSG25"                             ]                         ]                     }                 },                 {                     "type": "FOOTER",                     "text": "Use the buttons below to manage your marketing subscriptions"                 },                 {                     "type": "BUTTONS",                     "buttons": [                         {                             "type": "QUICK_REPLY",                             "text": "Unsubscribe from Promos"                         },                         {                             "type": "QUICK_REPLY",                             "text": "Unsubscribe from All"                         }                     ]                 }             ],             "language": "en",             "status": "APPROVED",             "category": "MARKETING",             "id": "950180443487043"         } 

And the POST message body:

{   "messaging_product": "whatsapp",   "recipient_type": "individual",   "to": "MY PHONE NUMBER",   "type": "template",   "template": {     "name": "vid_test",     "language": {       "code": "en"     }   },   "components": [     {       "type": "header",       "parameters": [         {           "type": "VIDEO",           "video": {             "Link": "https://static.vecteezy.com/system/resources/previews/006/996/488/mp4/timelapse-full-sunset-free-video.mp4"           }         }       ]     },     {       "Type": "Body",       "parameters": [         {           "type": "text",           "text": "Var 1"         },         {           "type": "text",           "text": "Var 2"         }       ]     }   ] }