Hi,
I can’t look at your workflow since I am on mobile, but the problem should be easy to fix. Generally KNIME stores possible values of nominal columns, but only up to 60 unique values. If there are more, possible values are not stored. In the domain calculator under possible values you can specify in the bottom left, if my memory serves me right, how many values values should be stored. This overwrites the maximum of 60 for the table coming into the domain calculator. So just change that value from 60 to 2000 and you should be good. Please note that this could impact performance, though.
Kind regards
Alexander
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