There seems to be a bug when using variables in workflow messages. There is an additonal return being shown before the value is displayed. I have noticed this in other workflows as well!
In the example below both 'klantnaam' (client name) and 'klantnummer' (account number) are of the column type single line of text, and yet klantnummer is shown on a new line.
Email message result:
Send message configuration:
Does anybody have an explanation for this?