It's not broken
Look for umm goggles I think they are.. trackmans goggles or some such. You have to wear them to see auras, or you can disable this function in the configs so it goes back to using a keybind.
Here I just found the changelog entry
- NEW: Added Trackman's Goggles, these goggles when worn allow you see various auras. You can cycle through the Auras by right clicking with them in your hand.
- NEW: Added Tuning Aura that shows Controller/Receiver Pairs.