MCDU Freeze in manual data entry

[JNJ]

Whenever i try to enter ZFW etc., my cursor disappears and the MCDU won't take any input. Clicking any of the buttons below like INIT or C/L Menu resets it until i click the text window again. It happens on any manual number input window on any of the pages like TO PERF as well. This is consistently repeatable with any airport, livery and both the -900 and -1000. The other displays continue to work in the meantime.

Edited March 4 by JNJ
I failed to add all the info at first.

[DroneSim]

The cursor disappearing is intended. You need to enter the data with the keyboard of the KCCU or click the right control button and type with your real keyboard 

[JNJ]

57 minutes ago, DroneSim said:

The cursor disappearing is intended. You need to enter the data with the keyboard of the KCCU or click the right control button and type with your real keyboard 

Thank you. I am used to the A380 so I didn't think of that.