Mimaki CJV150 Head Issue

[adsababy]

I have a problem with my CJV. The head is under two years old and maintained regularly, the machine gets light use.
After multiple cleans the head print pattern does not change, the bottom nozzles are missing, see photo. I have input nozzle replacement fot the rows 1-8 on each of the missing colours but they do not show as replaced when printing the test pattern.
Any help either to understand nozzle replacement or to get the original nozzles back would be appreciated.

 

[Smoke_Jaguar]

Might be worth swapping out the capping station and making sure to perform the adjustment.