Low Oil Pressure warning (MQB Motor)

[Black&White]

Hey All.

Has anybody experienced a LOW OIL PRESSURE warning.

Long story short. 2015 Golf 7R

I had a motor failure after my oilpump failed & I rebuild (forged) the motor.

Now at intermitted times I get the LOW OIL PRESSURE warning light coming on & it seems to come on when the car as at proper operating temp & when I hold at a stop & idle.

I have change all the oil pressure switches.

This is the ERROR:
5189 - Oil Pressure Switch for reduced Oil Pressure
P164D 00 [032] - Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 96188 km
Date: 2022.03.30
Time: 10:01:37

Engine RPM: 767.00 /min
Normed load value: 7.1 %
Vehicle speed: 0 km/h
Coolant temperature: 89 °C
Intake air temperature: 35 °C
Ambient air pressure: 850 mbar
Voltage terminal 30: 14.628 V
Unlearning counter according OBD: 36
Engine oil temperature: 88.0 °C
Time since engine start: 139.6 s
T_ES: 0 min
MAP_MES_SAE: 33 kPa
Engine: operating status: IS
T_AST_SAE: 138 s
ECU_STATE: SYN_ENG_IGK_ON

Anybody experience this before of know what it might be?

Regards
Martin