No Poshold, but no errors in MP or log

Tried to change to Poshold today and got the error beep from my copter. there was no error in MP and no error messages either.

Went through the log and all there is is err: Flight Mode -16 which is the inabilty to enter Poshold mode. My sats seen was around 11 with HDOP from 0.9 to 1.05.

EKF seemed fine and vibs are very low.

Any ideas?

It also wouldn’t enter Loiter. So it must be a GPS issue. Not sure what yet.