Pine Script - Alert function being called yet alert not sent

Question

I have a strategy that's being calculated on every tick and it has 2 alerts below 2 separate if statements. Both of these statements come true (strategy functions normally within pine, and displays label.new -s at correct time and price), yet only the first alert is sent.

I have simplified the conditions and tried to reproduce the error to no avail, it produced 2 alarms as it should:

alert("1",alert.freq_once_per_bar_close)

if barstate.isconfirmed

alert("2",alert.freq_once_per_bar)

My question: is there something fundamental I'm missing? I have a PRO account and 10 of these strategies are running in parallel, producing 10 alert "1" -s every bar close, but sometimes alert "2" is triggered when there should be 10+ alerts sent out. I suspected barstate.isconfirmed and calculate_on_every tick doesn't like each other, but the simplified version works just fine.

Thanks for the help!