I cannot reproduce the reported behavior when testing locally with the AppBuilder CLI, however, the issue might be related to corrupted cache. If this is the case, to clear the local cache of the AppBuilder CLI, you need to do the following:
1) Open Windows explorer and navigate to %localappdata%\Telerik\BlackDragon\.appbuilder-cli
2) Delete the Cache
folder located there.
3) Open a the command prompt and run the appbuilder simulate
If the above is not helpful, I would ask you to run the appbuilder simulate --log trace
command and share the whole produced log in your next response.