I have 6 places on my layout where a DZ-1008 relay controls the power to a single track section based on tack switch position. Five work fine. One intermittently drops out, and I can hear it drop out. When it does, if I push the button on the DZ-1002 controller and hold it (for the direction the switch is already thrown), the relay will change to the normally open contact and route the power correctly. FYI, it's a DZ-1000 switch machine.
Any ideas what is going on here?