429 on the backend call verified from Microsoft via Power Automate

Hello!  We have a Power Automate flow that was previously working fine, we were merging and creating 200-300 PDFs with no issue.  Last week, we started running into issues so we reached out to Microsoft Support and they said that we should address this with Adobe on their forums, so here we are.  Telemetry is below from Microsoft: 

Any help is appreciated!

{
  "method": "POST",
  "url": "https://power-apis-usgov001-sovereign.azure-apihub.us/apim/adobepdftools/shared-adobepdftools-2be80…,
  "backendResponseCode": 429,
  "responseCode": 429,
  "responseSize": 966,
  "cache": "none",
  "backendTime": 924,
  "requestSize": 535626,
  "apiId": "adobepdftools",
  "operationId": "CombinePDF",
  "productId": "ApiHub",
  "clientProtocol": "HTTP/1.1",
  "backendProtocol": "HTTP/1.1",
  "apiRevision": "1",
  "clientTlsVersion": "1.3",
  "clientTlsCipherSuite": "TLS_UNK0_WITH_AES_256_GCM_SHA384",
  "responseHeaders": {
    "x-ms-dlp-re": "-|-",
    "x-ms-dlp-gu": "-|-",
    "x-ms-dlp-ef": "-|-/-|-|-",
    "x-ms-connection-parameter-set-name": "",
    "x-ms-connection-gateway-object-id": "",
    "x-ms-tenant-id": "67323f29-0c79-4786-9348-68805d4583a0",
    "x-ms-environment-id": "cc939d95-1dc1-eb19-b731-6035e33a94d4"
  },
  "backendMethod": "POST",
  "backendUrl": "https://dcpowerautomateintegration-ue1.adobe.io/operation/v1/combinePDF",
  "requestHeaders": {
    "x-ms-correlation-id": "ff688212-a2ec-4862-bac8-ed5ffee80982",
    "x-ms-client-request-id": "ff688212-a2ec-4862-bac8-ed5ffee80982",
    "x-ms-action-tracking-id": "c8885635-3bcd-4aa3-8287-7a01ffc66706",
    "User-Agent": "azure-logic-apps/1.0 (workflow 28876e847d3f4fa4b44d6ec9d0802fb5; version 08584423257318044897) microsoft-flow/1.0",
    "Content-Type": "application/json",
    "Content-Length": "533597",
    "Accept-Encoding": "gzip,deflate",
    "Accept-Language": "en-US",
    "X-Ms-Workflow-Resourcegroup-Name": "67323F290C794786934868805D4583A0-CC939D951DC1EB19B7316035E33A94D4-ENV",
    "x-ms-workflow-subscription-id": "02d6cd8f-d1f4-4cd5-ba1a-db36230bdda7",
    "x-ms-workflow-name": "02f68d58-5b41-53af-bb4f-502b8a41d8ad",
    "x-ms-workflow-version": "08584423257318044897",
    "x-ms-workflow-run-id": "08584408807953459259288903355CU15"
  },
  "backendResponseHeaders": {
    "Content-Type": "application/json;charset=UTF-8",
    "x-request-id": "tBlA1I0SuxDFBKXIYfbIGAxE0ZXYbiW9"
  },
  "backendRequestHeaders": {
    "x-ms-correlation-id": "ff688212-a2ec-4862-bac8-ed5ffee80982"
  }
}