I just opened a new 4.27 project with the VR template and my Vive controllers are doing the same thing on that project. Pull the trigger on one of the guns and it vibrates for what seems like forever.
Edit: Just opened the VR template in UE5.01 and have the same issue.
Oddly, in the template trials, if I hold down the trigger it vibrates consistently for the full 3 seconds and then stops, but if I hold for like, 1.5 and release it will stop when it’s released despite not having any code I can see suggesting it should stop on release. If you just tap it quick on and off, it will rumble for the full 3 seconds and then stop.