Most of these issues are related the turnouts NOT being dcc friendly, or not wiring up the frog itself to the switch machine.
What happens is with non dcc switches is that sometimes the rails short and then the train doesn't get power (power goes straight to ground instead of going through the locomotive) The Soundtraxx Tsunami does NOT have a very large capacitor like the QSI engines. So it doesn't have the energy reserves that the large when a short happens.
With DCC friendly turnsouts, you have two types. Live frog (electro frog) and insulated frogs. With electro frogs (the best there is to use with short locos), you have to wire the frog to the switch machine relay.
Please read the following article about DCC switches.
http://www.wiringfordcc.com/switches.htm
What happens is with non dcc switches is that sometimes the rails short and then the train doesn't get power (power goes straight to ground instead of going through the locomotive) The Soundtraxx Tsunami does NOT have a very large capacitor like the QSI engines. So it doesn't have the energy reserves that the large when a short happens.
With DCC friendly turnsouts, you have two types. Live frog (electro frog) and insulated frogs. With electro frogs (the best there is to use with short locos), you have to wire the frog to the switch machine relay.
Please read the following article about DCC switches.
http://www.wiringfordcc.com/switches.htm