Ah, I haven't tested higher resolutions than 1920x1080 but have had issues with font scaling so this is probably an issue. The feedback on highlighting targets when hovering heroes is a really solid one - this information should be accessible as quickly as possible. I'll clean up the menu and tutorial text as well, it is misleading.
The node not being walkable is a bug that I haven't figured out yet. Thanks for sharing the bug with dying - I'll need to check that out too.