Lash up trouble

I have three legacy engines (sd80, & 2 dash 9’s) in a lash up. When initially set up all ran at the same speed and ran good. The one dash 9 now runs at a different speed than the other two (quicker). I tried to set the stall speed but I don’t think this works on legacy engines. All the engines run good when at a quick pace but the one pushes at slower speed. Any help on this would be appreciated.

Almost forgot I run TMCC

Wish I could. Never had that problem. Sure all are running in Legacy? One is not “switched” to TMCC. I know you can not lash up Legacy with TMCC unless you turn all engines to TMCC. The steps are not the same. Check the engine info on that engine and see it that is the problem.

I have corrected the problem. I basically started over and reprogrammed the engines individually then reprogrammed the lash up. I needed to do this twice and the second time all the engines fell in sync and ran great. I wish I knew what caused the problem to begin with though. I have been actively working on the layout and as a result some stray tools have hit the track and caused short-circuits. I’m going to chalk it up to that. I guess sometimes you just have to start over from the beginning. Thanks for the tip of not mixing TMCC with legacy. Although I have never tried it I didn’t know you could not do that thanks for that tip I will file that one away as I have both.