Smart Duplicate Selection can cause slowdowns when a large amount of XAML code (100+ lines) is selected.
Performance - Smart Duplicate Selection freezes Visual Studio when it is applied in XAML code
Answers approved by DevExpress Support
We have addressed the issue described in this ticket and will include a fix in our next maintenance update. Should you need to apply our fix prior to official release, you can request a hotfix here.
Note: Hotfixes may be unavailable for betas/updates set for release within a week.
- v20.2.8Download Official Update