iPadOS 13 public beta 2 breaks USB mouse support on the 10.5” iPad Pro

I’ve discovered something I’m hoping is just me rather than a wider bug but testing iPadOS 13 public beta 2 I’ve noticed my USB mouse stopped working on my 10.5″ iPad. When I tested the same thing on my iPad Mini it works absolutely fine. I’ve raised this with Apple so I’ll update this post if I hear anything back.

Anyone else?