The POST to /api/v3/conversations/messages is randomly failing with a 413 Payload Too Large error, even though we’re well under the 64KB limit - it’s happening on about 1 in 10 messages. We’ve checked the CONTENT_TYPE header and it’s application/json, obviously.
It looks like the SDK is buffering the request before sending it, but it’s not calculating the payload size correctly. Tried limiting the message size on the ARCHITECT flow to 5KB, but it still hit the 413 wall. Anyone else banging their head against this? The JAVA_SDK version is 6.19.0.