Seems more basic: the rule-set and messages you get when a Display panel is connected to a circuit network seem likely to be different things than its static message buffer if not connected... and their messages don't seem to reflect parameterization. The conditions for the messages do, but not the ...

Tried, but no. I didn't specifically try to hit the race again, though.

This is a better framing of the suggestion I was just about to make!

Given the wonderful illustration of station wait conditions, the interrupt conditions seem dead because they don't reflect their truths. Yes, they are global, but yes I am thinking about a particular train when I'm in there trying ...

I had a train at depot which should (I wish) have been at its cargo-source station, waiting for cargo-sink to open up its train-count. It was operating under an interrupt as shown in the screenshot. Every 30s it loops and re-enters the depot interrupt wait conditions. I tried adding a cargo-sink not ...