
What “WARNING‑29 priority operations need to be completed” Actually Means
This message comes from the
IT Enhanced Manager / Interlocking Towers system in TRS19 SP4+ (and TRS22).
It appears when you open or edit a tower that still has
pending internal operations—things like:
- A junction the tower is trying to set
- A route it is trying to reserve
- A lock or release that hasn’t finished
- A conflicting request that hasn’t resolved yet
It does
not mean your towers are faulty. It means the tower is mid‑task.
Why It Happens
Interlocking Towers operate like a dispatcher:
- They queue “priority operations” (route requests, junction settings, releases).
- If you open the tower while it still has items in that queue, you get WARNING‑29.
- It’s informational, not a fault.
This often appears right after:
- Loading a session
- Editing a tower while trains are moving
- Towers resolving a previous route reservation
- Towers releasing junctions after a train passes
How to Clear It
You have three options:
1. Let the simulation run for a few seconds
Often the tower finishes its pending operations automatically.
2. Make sure no AI train is stuck waiting on that tower
A blocked AI driver can leave a tower with unfinished tasks.
3. In Surveyor, close the tower editor and reopen it
Once the queue clears, the warning disappears.
Does It Mean Your Towers Are Misconfigured?
Not necessarily.
If your towers now show
no overlaps and no faults, then WARNING‑29 is just a leftover informational message.