In the event that you are one of innumerable Gmail clients who have set channels for their approaching email, just to see that Gmail appears as overlooking or superseding your channel, well, you're not the only one. For instance, you may have set a channel for email from specific individuals or mailing records to avoid the inbox, but those equivalent messages keep winding up in the inbox. Another motivation behind why Gmail Not Working with your iPhone or iPad is that IMAP might be crippled in Gmail's settings. On the off chance that IMAP is killed on Gmail.com, you won't have the option to get your email from the server.
Link: https://www.hitechnumber.org/how-to-fix-gmail-not-working-in-chrome/