Another way to get around this is just running the version of func.exe that you want. You can do this by changing the debug settings of the csproj to
C:\Users\xxxx\AppData\Local\AzureFunctionsTools\Releases\3.0.2\cli\func.exe and a parameter of start.
I was able to see the preview in the drop down yesterday but today I cannot. I posted an issue on github github.com/Azure/azure-functions-h....
Another way to get around this is just running the version of func.exe that you want. You can do this by changing the debug settings of the csproj to
C:\Users\xxxx\AppData\Local\AzureFunctionsTools\Releases\3.0.2\cli\func.exe and a parameter of start.
Update to the latest Visual Studio 2019 preview if you're still having this issue.
Thanks, I am not but hopefully they fix this mapping problem of versions before it gets out of preview ;)