MASSIVE SONY BANDING ISSUE or Photographer Error?

MASSIVE SONY BANDING ISSUE or Photographer Error? I took the Sony a9 out to a concert and quickly realized there was major banding under the LED lights when a faster shutter speed was used.

Download MyGearVault https://mygearvault.com/#download

Sony Banding Photos http://bit.ly/2raFSPb
Sony a9 and Nikon D5 Concert Images http://bit.ly/2KojGKx

Is this just an issue with the Sony a9 or does it show up in the Sony a7R III and Sony a7 III? Flickering