As of now I've only seen this happen with one trap in the low-level dungeons (since it's pretty much the only one I've seen since EE), the one in the crypt under the temple of the morning lord. The traps is supposed to trigger each time a character steps on it until disarmed, but now it only seems to trigger once, leave the mark as what the trap is there (red squared) and not re-trigger when stepped on again. Could possibly be the same with other traps on the server.
In this screenshot, my character stepped on the trap without it triggering though the mark as what the trap is there remains, as seen by the abscence of triggering text in the log (stepped on after the fight vs the skeleton was over):
