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JPJ's avatar
JPJ
Copper Contributor
Jul 21, 2025

Word random crash during Word mail merges after windows update

Hello, Since the Windows 24H2 BUILD 26100.4652 update, we've been observing a random crash during Word mail merges. These are lists of fields in tab-delimited txt format. These random crashes occur both during the generation of our VB code and during manual testing. The affected machines are those that have received the latest Windows updates, regardless of the version of Word installed (2016 and later). In addition, the crash can occur directly during the merge request, while scanning records, or during the final multi-page generation. Thank you for your help.

7 Replies

  • JPJ's avatar
    JPJ
    Copper Contributor

    The problem persists with build 19029.20156. Windows 11 updated

  • JPJ's avatar
    JPJ
    Copper Contributor

    Thank's xohyx

    Despite Windows and Office updates, the problem persists. I've better understood the issue. The crash occurs when carriage return (CR) and only CR (no LF) are contained in one or more tab-separated fields.

    Of course every record ends with CRLF.

    With few recordings, it works.

    Problems appeared with the 18925.20168 build and persist with the latest one obtained 18925.20184

  • xohyx's avatar
    xohyx
    Iron Contributor

    Just roll back recent Windows updates and fix Office.

    • JPJ's avatar
      JPJ
      Copper Contributor

      Thank's xohyx

      Despite Windows and Office updates, the problem persists. I've better understood the issue. The crash occurs when carriage return (CR) and only CR (no LF) are contained in one or more tab-separated fields.

      Of course every record ends with CRLF.

      With few recordings, it works.

      Problems appeared with the 18925.20168 build and persist with the latest one obtained 18925.20184.

    • JPJ's avatar
      JPJ
      Copper Contributor

      Thank's xohyx

      Despite Windows and Office updates, the problem persists. I've better understood the issue. The crash occurs when carriage return (CR) and only CR (no LF) are contained in one or more tab-separated fields.

      Of course every record ends with CRLF.

      With few recordings, it works.

      Problems appeared with the 18925.20168 build and persist with the latest one obtained 18925.20184

       

      • JPJ's avatar
        JPJ
        Copper Contributor

        The problem persists with build 19029.20136. Windows 11 updated