Have noticed earlier that the fluid in the AYC hydraulic system seems to dissapear, but have not noticed any leak. I have just filled it up when it was low

Changed oil in the diff and transferbox today and when I opened the AYC clutchpack fillplug, I got covered in oil

Seems like the fluid from the hydraulic system have leaked into the AYC clutchpack.
Is it possible that it is just a seal or is it time to upgrade to S-AYC

Today I finally got the front Selbys ARB installed