Just wanted to say it out loud.
It bothered me that everything was an "issue".
The "dual panel" works very well to me. Could be made better with a better handling of navigation to other issues, would be great to have some sort of breadcrumb to walk your way back to where you were before
My next wish for a more "modern" UI would be "inline edit" of the fields, instead of having to first click "edit" button to enter edit mode, then editing. It could be done in 1 click on what you want to edit like in Notion.