Thank you for asking this question in the support community. What firmware version is running on this device? Also, what does the output of the show track command produce? Do all the probes show they are tracked?
The 3448 is running 18.03.01.00.E
Current State: PASS (Admin: UP)
probe ComcastProbe-1 (PASS)
OR probe ComcastProbe-2 (PASS)
OR probe ComcastProbe-3 (PASS)
Dampening Interval: 1 seconds
Time in current state: 4 days, 20 hours, 53 minutes, 44 seconds
Track State Changes: 0
ip route 0.0.0.0 0.0.0.0 X.X.160.54
Shows all three!
This appears to be a display issue with the show probe command when there are more than two entries in the "test list" probe configuration. It should not affect functionality at all. Thank you for bringing this to our attention. Let me know if you have any additional questions.
I had the opportunity to check 3 other sites which are also running probe lists and they also had the display issue. They all seem to be functioning correctly.