You can check the compability with interface type here: https://www.multiecuscan.net/VehicleSupportCheck.aspx

At the main screen, press Scan. Does it do that?

Press scan and MES will scan the entire car. In the scan you will see wich ecu you got.

Have the dreaded flashing odometer and someone replaced the Uconnect5, my current canbus data is Reading CAN configuration data ... CAN CONFIGURATION DATA: 4F 84 00 05 11 00 00 00 4F 84 00 05 11 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 4F 84 00 05 11 00 00 00...

2021 is a borderline case. Could be both.. But there are a lot of posts and forums online where you can check if you have the build in version or the separate version

This ducato is probally equipped with an SGW. If you want to change an program certain things you need an SGW bypass.

Change Byte 123 from 01 to 11

And let me know how it went.

After a failed proxy you will see a button here: (see attached file)

Can you upload what you see then?

Do you get an error message during proxy allignment?

Does the low pressure fuel pump work? The pump inside the fuel tank.