iPad Pro and Apple Classroom

We've started using Apple Classroom v. 2.1 recently and we're seeing some of the student iPads not receiving the Apple Classroom option in settings regardless of the iOS version. We are a BYOD school, but we do require that device to be iPad. We don't dictate which model of iPad. Most of our students use current versions of iPad and a very small number use iPad Pros. It is those Pro models that have trouble with Apple Classrooms, specifically not seeing the Apple Classroom option in settings. The one Pro I have today is model MQDT2LL/A and I've confirmed that this iPad is on the latest iOS (11.2.5 as of today), it is connecting to the same WiFi network as the instructors and other students, and bluetooth is on. We've tried rebooting the device, turning on and off both bluetooth and Wifi, but nothing seems to work. At this point it appears to be a bug with iPad Pro.

Can anyone lend some insight?

Thanks in advance!