I have my gmail account in Mailspring on Mac. If I go to Trash in Mailspring, I see some trash with “empty trash now” button at the top. When I press the button, nothing happens and the exact same messages exist. However, if I open a browser and go to my gmail, there is nothing in the trash. How could I clear the trash in Mailspring?
Appreciate the help.
Thank you
I’m going through exactly the same 
Empty Trash now deletes some but not all. I’ve been dealing with this for months. I am on Win 10, not a mac, however the problem is persistent.
I have the very same problem since months. Two emails stuck on two different accounts (I have 4 gmails accounts sets) and when I go on Gmail Webmail, stuck emails aren’t existing. I’m on windows 10 latest update and the only option I see is to delete and reinstall mailspring, but so I have to redo everything…
I am experiencing the same problem with the Spam folder and Empty spam now. It doesn’t remove all emails from the list. These displayed emails have already been deleted from the server. Windows 11.
I realize this is a year old message, but I was having a similar issue and found that by going to Settings and scrolling to the bottom of the General tab there is an option to “reset cache” under local data and that fixes the problem for me. I would note though that the issue tends to return each time I do a system update (I’m on CachyOS Linux). Hope this helps someone who’s as OCD as I am and cannot stand a stuck file in trash.