How do I delete custom avatar/icon of IssueTypes at next-gen project configuration?

Question

I have a next-gen project at cloud based JIRA, in which I am able to create new issuetypes with custom icons/avatars.
The problem is that I'm not able to delete any icon/avatar from that issuetype configuration screen.

This is because I have to delete and re-upload icons that are related to a plugin (app) from atlassian.

Can anyone help with that? Thanks in advance!

Mehran Nazar · Answer

Yes, I know that I have to create a new project. By the question I meant how to backup and restore issues with a simple method, no winding paths. Anyway, if that's the only way, it might not be a good idea, since I have approx. 5k issues at that project, one more important than the other and I don't want to mess up.

Thank you Alex for your help!

Alex Koxaras -Relational- · Answer

This mean that you have to setup the new project before moving the issues. Are you sure you want to do that for a couple of icons?

Mehran Nazar · Answer

Thanks Alex, do you know which would be the easiest way to move all my issues to a new project?