After adding a fixed dataset to a table i getting an error because some values on selection.data.0 are null
What is the error?
Right-click on selection.data.0 and copy.
Go to https://jsonlint.com/ and paste it in and validate the JSON.
I think you have characters in your column names which are not allowing in JSON keys.
Ignition might be able to work with them.
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This has nothing to do with your nulls.
Many of the object keys in your screenshot have spaces and special characters. Those are not allowed in JSON. They are allowed as column names in true datasets, so you will need to reconsider your dataset column names.
Keep in mind that your table does not have to use a dataset's column name as the column header. Supply a columns property with a header override as needed.
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