No issues with the new hub. Are you using the official device handler?: [RELEASE] Official Monoprice Motion Sensor with Temperature, Tamper and Battery Device Handler
Couple of things to try:
- Reset the sensor
- Exclude the sensor and then try to pair it
- Adding a buffering device between the sensor and the hub, common issue with mesh: FAQ: why would I need another beaming repeater if my zwave lock is already close to my hub?