fresh debin12 + vim + vundle - RainbowCSV not starting

[samlander]

New Debian 12.6 install

VIM - Vi IMproved version 9.0.1499

BundleList says " My Plugins | Plugin 'VundleVim/Vundle.vim' |~
Plugin 'mechatroner/rainbow_csv'

vim test.csv

fred,3
jane,93
mary,34
bill,19

:set filetype=csv :RainbowAlign

gives:

line    7:
RainbowAlign is available only for highlighted CSV files
Press ENTER or type command to continue```