I have the Canvas mobile app and use the web version on my laptop, as well. I've checked that notifications are enabled for Canvas on my iPhone. I also receive mobile notifications from the Canvas app for other things, like new comments on a discussion post, but not when my professor makes a new announcement. I also have emails enabled for announcements and, although I get other emails from Canvas, I don't get them when a new announcement is made. Both mobile and email notifications (both on notify immediately) are enabled for announcements.
How do I fix this? I'm worried I'm going to miss an important announcement about something.