Not receiving arrival alerts consistently

I have several alerts setup and I don’t always get an alert when the flight arrives. I almost always get alerts for the morning arrival on the alert, but never on the flight arriving in the afternoon. The alert in question is for any B752 arriving at KBIL which normally there are only 2 or three B752s arriving on any day. These used to work fine in the past.
Thanks!

Looks like we sent alerts for FDX304, FDX380, and FDX1527 today. Did you receive all of those alerts to your ios device?

You can check to see which alerts were sent to you at the following link: flightaware.com/account/manage/notifications

I had checked there. I did not get the arrival alerts, just the flight plan filed and departed. I even setup a new/duplicate alert a few days ago and it seemed to work for a day and then it too no longer alerts on arrival. Below is what FA shows was sent.

SuccessFDX304 has departed KMEM for KBIL Apple iOS Tuesday 14:14 MST
SuccessFDX304 has departed KMEM for KBIL Apple iOS Tuesday 14:14 MST
SuccessFDX380 has departed KMEM for KBIL Apple iOS Tuesday 13:35 MST
SuccessFDX380 has departed KMEM for KBIL Apple iOS Tuesday 13:35 MST
SuccessFDX304 filed a flight plan KMEM → KBIL Apple iOS Tuesday 11:10 MST

Sorry, missed the arrival alert part. I am looking into why we did not send the alert.

Okay, thanks. No arrival alert this morning either. I did get the 45 min alert, but those have been sporadic.

Any updates on this? Still not consistently receiving arrival alerts.
Thanks!