Well, the issue is in the title.
When using the new Lightweight Rendering Pipeline in Unity, the Leap Motion Hands fly away. Disabling the LRP fixes the issue, but is absolutely not possible in the project I'm working on. We have a really tight deadline and we cannot rebuild all the assets and shaders because of a single issue.
Is there any known way to fix this issue? I'll keep investigating and post result here if anything come up.