Including citations from both file_search tool and web_search tool in the same response

Hi, I’m trying to fix an issue in a RAG system with file_search that also uses web_search tool restricted to a set of allowed domains (using responses api).

The problem I’m facing is the following: when only one tool returns results, I can correctly parse the output and insert annotations. However, when both tools return results, I start seeing text truncation in the middle of sentences.

Has anyone encountered this before or can share examples of how to handle this situation correctly?