A couple months ago I started noticing that emails deleted on my phone were still in my inbox on emClient. I checked them directly in gmail and they were in fact flagged as having been deleted, yet emClient would never removed them from my inbox until I deleted them there manually also
If your Gmail IMAP account in eM Client is not synching / updating from the server end, the could be it’s either “needs repairing”, or “needs removing and re-adding the account”, or "some program is interfering or blocking eM Client.
So first try repairing eM Client. Right click on “All Mail” folder under your Gmail account and then click “Properties” at the bottom. Then click the “Repair” tab at the top and lastly click “Repair”. This can take a little time to do as it clears the local cache in eM Client & has to re-read your email. So be patient when doing repairing.
If repairing Gmail doesn’t work, then try removing and re-adding your IMAP account. To do that, go to “Menu / Accounts” and highlight your Gmail account on the left and click remove / delete along the top. Then add your Gmail account via the automatic email wizard at the top.
Lastly if removing and re-adding your Gmail account makes no difference, then could be you might have a program locally installed interfering or blocking eM Client. So if you have any eg: optional Antivirus programs, optional Firewall / Security programs or VPNs etc, try completely disabling those to test.
It’s important to note that the emails in the inbox that have been deleted also now have the ‘tracker’ icon next to them. I just looked up what that meant, and that doesn’t make sense to me either.
The tracker icon you are referring to might be the new eM Client "Tracking “Pixel” icon. See the below thread for what it does and the difference between the free and pro versions.
If it’s not the Tracking Pixel icon you are referring to, could you do a screenshot of it and paste it in this thread. Blank out anything personal.