My problem is that even if I selected to stop watching an issues in a certain project that I am not assigned anymore, I still receives those notifications that are essentially none of my concern anymore.

[Dnyaneshwar Ramesh Borase]

Example :

I have created one issue & I was the reporter, I selected to not be a watcher of this issue, but issue was modified 2 days ago and got notification that I essentially don’t want to receive anymore.

[Nic Brough -Adaptavist-]

You already asked this over at https://answers.atlassian.com/questions/46307373 which has much the same answer that Udo has given you.

[Vasiliy Zverev]

You could try find with NotificationMaster into issues why do you receive notifications.

[Udo Brand]

You are the reporter, that is why you recieve a notification. In the used notification scheme are entries like notify all watcher on Resolve issue event. also notify the reporter on Resolve issue event. So unwatching the issue does not help in this case.