I have made a simple white noise generator to help with testing other plugins, and my first build was without any controls displayed on the interface to make sure the code was building fine. I am building AU, VST3 and standalone versions. I loaded the AU version into AudioPluginHost (since I primarily just use AU) and it worked. So I added the noise generation and level control. But when I built again and loaded the AU, it was a blank GUI with no noise coming out. Opened the standalone and loaded the VST3. Changes were reflected. Any ideas what might be causing this? Any further changes are also reflected in standalone and VST3 but not AU. I am using JUCE 8.0.7, XCode 14.2 on an Intel Macbook with macOS 12.7.6. Deployment target is 10.13. Any help is much appreciated.
Edit: I have just tried making changes to another project and the AU for that reflects the changes just fine.