A production receipt-parsing system using the Mindee Python SDK (v4.17.0 through v4.19.0) started crashing inside client.parse() with a TypeError. The API began returning "fulltextocr": null entries in document.inference.pages[].extras, which the SDK's deserialization did not handle. The reporters worked around it by monkeypatching requests.post to strip null fulltextocr values from the payload.