I'm trying to troubleshoot an issue with our 2021 VW Caddy which appears to be related to the MIB 3 unit

We've got an issue with the rear traffic assist being unavailable which is an intermittent fault, the ECU reports U105400 information electronics control module 1 no communication

We had the MIB unit go dead for around 5 days and then come back to life

While the MIB was dead I got lots of databus missing error messages from the 3C lane change assist and the rear camera which I assume all run via the MIB unit

I thought I might start by updating the software in the MIB but I cant seem to acsertain which is the latest software

The current version shows from the engineering menu

MO13_EU-VW_R8960L
Software Version 1896


From the system information menu

Device Part number 5H0035820H
Hardware H56
Software 1896
Display unit/control panel Hardware H46
Display unit/control panel Software 2092
Navigation Database 24.2

I've headed over to the MIB solution website but unable to determine the latest version

Any ideas? I want to make sure this isn't a software bug, I've got permanent codes in the rear traffic and lane change assist relating to communication errors, trying to avoid a visit to the dealer in the first instance

Appreciate any pointers

Thanks in advance