在 Revit 2020 中，Fabrication Parts（预制图元）可能因以下原因出现：复制预制图元时会复制包括 GUID 属性值在内的元素数据；ITM 文件中可能存储了 GUID，并在部件创建时应用于每个实例。Autodesk 明确指出，截至撰写此文章时可供下载的最新 Revit 2020 版本是 2020.2.9 ，更新到此版本可以防止在复制图元时创建更多重复 GUID。此问题在 Autodesk 官方技术文章中也有详细记载和解决方案指引。
Resolved an issue with that previously prevented some projects from upgrading correctly. User Interface :
| Scenario | Recommendation | |----------|----------------| | You use Revit 2020 with | ✅ Yes – cloud API changes may break sync without it. | | Your IT security policy requires latest patches | ✅ Yes – if it’s a security fix. | | You are on Revit 2020.2.6 with no issues | ❌ No – unless the specific hotfix ID matches a problem you have. | | You plan to upgrade to Revit 2024/2025 within 3 months | ❌ No – focus on migration instead. | | You use heavy third-party add-ins (e.g., Dynamo 2.x, PyRevit) | ⚠️ Test first – DLL changes can break bindings. | revit 2020.2.9 hotfix
It is important to understand that the is a patch that follows the major Revit 2020.2 Update . The 2020.2 Update, released in late 2019, was a significant product update focused on productivity. It introduced powerful new features such as:
The 2020.2.9 Hotfix is particularly significant because it addresses security vulnerabilities in components used for data interoperability and materials management. It also resolves critical issues with opening cloud models and upgrading complex MEP projects. If you continue to use Revit 2020, installing this hotfix is not just a recommendation—it is a crucial step for security and workflow integrity. | | You are on Revit 2020
Because the 2020.2.9 Hotfix is cumulative, applying it means you are fully updated and will receive all the benefits of the major 2020.2 Update as well.
Revit 2020.2 实施了增强的数据存储实现方案，以问题。这一修复对于 Revit 模型的长期稳定性和数据完整性至关重要，尤其是对于大型团队协作项目。根据用户反馈，Revit 2020.2 以前的版本存在模型有较小概率会损坏的 Bug，官方在 2020.2 及更高版本中已解决此问题。 | It is important to understand that the
If you want, I can draft a short customer-facing release note, an internal IT rollout checklist, or step-by-step install instructions—tell me which one.
Even though Revit 2020 is an older version, staying updated with the final hotfixes ensures that the software remains stable and secure, especially when working within BIM 360 or cloud-collaborative environments.
Revit 2020.2.9 Hotfix , released on May 24, 2022, serves as the final maintenance update for the Revit 2020 product line. While Revit 2020 itself is no longer officially supported by Autodesk for new downloads, this hotfix remains critical for users still maintaining legacy projects in this environment. Key Fixes and Improvements
If you encounter any issues not covered here, the Autodesk Knowledge Network and its community forums remain the most valuable resources for up-to-date support information.