I found 2 bugs in 2019 beta (30th of november build). tested in a demo version:
1. If you drag in a multilocation, check the Edit mode, change the location to a higher number ( I used 18) uncheck the Edit mode check box and press reset, the amount of locations is a back to standard (being 9)
2. Right click in 3D you will get the popup menu and there is a typo in transport group:
3. If you enter a name in the Name column of the data time source (of the arrivals process flow that is automatically created in a people flow model), that name is given to the token that is created but how can you put that name on the 3D object that is created?