What happens when a feature has failed to build in the Part Navigator?

When a feature fails to build in the Part Navigator, it remains within the model but is not usable until it is corrected. This is crucial as it allows users to diagnose and troubleshoot the issue without losing their previous work or the context of their design. The failure can lead to visual indications such as a warning or an error symbol next to the affected feature, which informs the user that there is a problem that needs to be addressed. This aspect of keeping the failed feature in the model helps maintain the history and integrity of the design, as it allows for easy identification and modification of the problematic feature. Properly handling any issues without permanently deleting valuable design information is an essential part of working efficiently in Siemens NX.