How do I post a new issue on the issue tracker

I just tried to drag and drop files from win rar and unity crashes.
i’m using unity 2019.2.13f1

Instructions for filing a bug report here:

You mentioned winrar, what exactly are you trying to drag and drop? You’ll want to make sure to remove the /Library folder in particular from your project before compressing and sending the file, they can get quite large, if you are trying to send a compressed copy of your project. Or you can use the Repro Project Wizard tool.