The menu where you name the cities in the war has a feature that automatically clears the default names so you can type. Could this be applied to the names of %rng_power% as well?
I was playing with my Space War V2, and it crashed, giving me the screen you see when you have too few events. My theory is that when the HRWS interpreter finds an event it doesn't understand, it'll pull up that screen. The issue is that the interpreter doesn't say which event it didn't like, just saying some event didn't work right. It would great if the game would tell you what event(s) didn't work.