That's quite strange.ACES CG Linear (Academy Color Encoding System AP1)
Adobe RGB (1998)
Color LCD
Display P3
Generic RGB Profile
Rec. ITU-R BT.2020-1
Rec. ITU-R BT.709-5
ROMM RGB: ISO 22028-2:2013
SMPTE RP 431-2-2007 DC(P3)
SRGB IEC61966-2.1
What Mac with what OS are you using? Are we talking about the latest Studio Display ? https://support.apple.com/en-us/docs/displays
Have you just bought it recently ? Used second hand or not ?