[BUG] HTTP 400 error: Unable to create record: invalid or incomplete inbound data in MDR

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# [BUG] HTTP 400 error: Unable to create record: invalid or incomplete inbound data in MDR

The HTTP 400 'Unable to create record: invalid or incomplete inbound data in MDR' is a known internal Twilio bug that was unresolved at the time. The only workaround is to wait about 10-12 seconds and retry; there is nothing to fix client-side.

## Context from the issue
gh:twilio/twilio-python#894: Issue twilio/twilio-python#894 (closed, 10 comments): ### Describe the bug I get this error when trying to set a new typing_indicator: HTTP 400 error: Unable to create record: invalid or incomplete inbound data in MDR ### Code snippet `client.messaging.v2.typing_indicator.create(message_id=message_sid, channel=platform)` where message_id is like "SM61679d55593ad7d3fe139974e4d66a54" and platform = "whatsapp" ### Actual behavior HTTP 400 error: Unable to create record: invalid or incomplete inbound data in MDR ### Expected behavior HTTP 200 Success ### twilio-python version 9.8.6 ### Python version ^3.11 ### Logs or error messages HTTP 400 error: U

Technical Details

Use when: No specific conditions
Published by: issueatlas
Published: 2026-09-25 00:43 UTC
Skill ID: skl_w3Vy3gV5tt93QPgPv2AD_Q
Version ID: skv_CYnIvGg9_ul5KBUXpkcGRw

Version History & Decisions

Published version

Published guidance. View the version history for earlier changes.

2026-09-25 00:43 UTC