[Hot Design] Known Issues

[agneszitte]

This issue serves as a central place to track known issues for Hot Design®, along with any available workarounds.
The list will be updated as work progresses and fixes are released.

If you're experiencing a problem that is not listed here, please report it by opening a new issue.

Important

To start using Hot Design®, ensure you are signed in with your Uno Platform account.
Follow these instructions to register and sign in.

• Hot Design is available on all platforms. See the list of known issues below.
• Hot Design does not support C# Markup and is only available with XAML and .NET 9.
• Hot Design is not available for the WinAppSDK target framework (netX.0-windowsX.X.X) at this time.
• Hot Design relies on Hot Reload for updates, so be sure to check the current support for your OS, IDE, and target platforms before testing.
• Your input matters! Share your thoughts and help us improve Hot Design. Find out how to provide feedback here.

Current Known Issues

HD-Supported Platform(s)	Issue	Description	Workaround
All	Multi-Window Support Unavailable	Multi-window support is not available at the moment.	Define the UI manually in code without Hot Design.
All	Editing Flyouts	Editing Flyouts is supported but limited; nested Flyouts are not supported. Discussion	For nested Flyouts, define them manually in code or use the Complex Editor in the Properties panel.
All	Editing ContentDialogs	Editing ContentDialogs is currently unavailable. Discussion	See this comment or define them manually in code.
All	Inline Elements in TextBlock Not Recognized	Inline elements in <TextBlock> are recognized only when declared inside a <TextBlock.Inlines> child element. Inline content placed directly inside <TextBlock> is not parsed correctly in this version.	Always wrap inline content inside <TextBlock.Inlines> … </TextBlock.Inlines> until full support is added.
WebAssembly	Performance Considerations When Debugging	When debugging on WebAssembly, Hot Design may experience reduced performance.	For a smoother experience, run the app without the debugger attached.
All	Markup Extensions – Basic Support Only	Markup Extension values can be viewed and cleared in the Properties panel, but editing is limited; a generalized markup editor is not planned for the initial release.	Use Reset, reopen the flyout to edit a value, then enter Interactive Mode or restart Hot Design to preview changes. Advanced editing can be done directly in code.
All	Editing TemplateSelectors Not Supported at the moment	Editing TemplateSelector-resolved templates is not supported, as they rely on custom types that may or may not expose template properties.	Temporarily set the template as the ItemTemplate, make edits, then reset the property, or manually edit the templates in code.