Everything looks fine on our end. For some reason it looks like you're sending to the wrong node.
I just did a packet capture off the wire and it does appear that I am sending to the right node.
POST /call-upload HTTP/1.1
Connection: Upgrade, HTTP2-Settings
Content-Length: 760
Host: api.broadcastify.com
HTTP2-Settings: AAEAAEAAAAIAAAABAAMAAABkAAQBAAAAAAUAAEAA
Upgrade: h2c
Accept: */*
Content-Type: multipart/form-data; boundary=--sdrtrunk-sdrtrunk-sdrtrunk
User-Agent: sdrtrunk
----sdrtrunk-sdrtrunk-sdrtrunk
Content-Disposition: form-data; name="apiKey"
7888cce7*************
----sdrtrunk-sdrtrunk-sdrtrunk
Content-Disposition: form-data; name="systemId"
3260
----sdrtrunk-sdrtrunk-sdrtrunk
Content-Disposition: form-data; name="callDuration"
4.032
----sdrtrunk-sdrtrunk-sdrtrunk
Content-Disposition: form-data; name="ts"
1711680328
----sdrtrunk-sdrtrunk-sdrtrunk
Content-Disposition: form-data; name="tg"
100
----sdrtrunk-sdrtrunk-sdrtrunk
Content-Disposition: form-data; name="src"
0
----sdrtrunk-sdrtrunk-sdrtrunk
Content-Disposition: form-data; name="freq"
453.5625
----sdrtrunk-sdrtrunk-sdrtrunk
Content-Disposition: form-data; name="enc"
mp3
----sdrtrunk-sdrtrunk-sdrtrunk--
HTTP/1.1 200 OK
Content-Type: text/plain; charset=utf-8
Content-Length: 32
Connection: close
Server: awselb/2.0
Date: Fri, 29 Mar 2024 02:45:34 GMT
X-Cache: Miss from cloudfront
Via: 1.1 bfc4676044fcc4c0c8e705c71ca51fea.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: IAD55-P5
X-Amz-Cf-Id: gg5WfkNiXEUqoKfxdH3yqGCQinZUc21rLr7WewIuydFyJHN7rv8Olg==
1 No-Freq-Table-Entry-For-Upload