I am still having issues with connecting both of my H9s at the same time on an iPad air first gen.  I just updated to 8.4.1 to see if any changes were made but sadly, still the same.  I can connect one or the other but not both at the same time.  All of my other blue tooth devices work perfectly with it.  I end up using the mini-USBs to connect to my mac mini (bluetooth won’t connect to them on that machine either, sadly but everything else that I bluetooth works flawlessly!)  

To me 

Either way, I can use both with that method or my older iPad but then the problem exists that I can access the new Crushstation preset with the older iPad.  

I’m going to borrow an iPad air 2 to see if that will work and if that is the case, then it may be my only solution to get a new tablet.  Really shouldn’t have to to this.