Yes, 1939 version, as is mentioned in the title of my bug report, not the retrofit version. And did you open the valve/valves I mentioned prior the start up, the location is shown in later post of that report, did you read it? I think you went the easiest way and not opening these valves.
Did you read my 2nd edit? I checked the 1939 version. It’s fine too. Fine at least in that the brakes work, the parking brake works (even tho it shouldn’t have one I think) and the chocks hold it.