Hi roiboiboi! Thanks, really enjoy Livelink as well.
For the inputs, could be SteamVR is getting confused between two UE Editor sessions, especially if you have both of them open at the same time.
Check which bindings the Input Debugger is reporting when you’re using the wands… It should correctly use default Vive bindings.
If not, try a Steam and SteamVR restart in between sessions. Failing that, let me know and I can provide the default action files for all other controllers in the repo to ensure these are used as a fallback even if SteamVR doesn’t correctly register the session change.
Cheers.