We have a flight on the 19th LHR via DOH to PER - just looking in the APP I have a notification that our outbound QR4 is cancelled and we have been rebooked on a later service at 8pm from LHR. However no connecting flight onto Perth. Our return flights from Perth in April are still showing. So at the moment we only have flights as far as Doha yet return flights coming back from Perth. I see a few other posts on Reddit with similar issues or with connecting flights that depart before the inbound flight arrives.
I've had no email informing of a schedule change. I'm guessing they maybe mid way through updating the schedule? Not sure whether to leave it a while or call. Like everyone there is the worry that the longer things are left unresolved, the less availability there is to ask for a rebooking on a different carrier.