If you resume a saved game later with the class 31, it has (at least) two issues: The instruments lights are not working. The issue is in the coupling between the setting and the user interface. The setting is correct (they stay turned on), but they are not shown. Switching the lights off and on again is a workaround. There is a second issue with the pulled class1010. For these the saloon lights stop working, which is not very much appreciated. There is no easy workaround for this, because you only can set them from the class 1010 cab. Not sure if the NTP class 101 has the same issue.
