Breztri Inhaler

Is anyone on breztri, I’m on
It about a year, I have noticed I feel like it doesn’t last 12 hours, I take once in morning and once at night and I can tell it’s almost time to take again, now I have noticed last month inhaler and this months inhaler when I take it sometimes i don’t feel like I’m actually getting a full dose and I won’t take it again until the night dose and I notice those days I’m not breathing well, does anyone else have any issues, yes I make sure I rinse the canister like the suggested and it’s not difficult to push down on it to take medication, just wondering has anyone had any issues with this inhaler