I have a roll-up analysis that showed the above mentioned error message and the red exclamation mark.
I resolved the issue by mapping the output to a temporary attribute and then remapping it to the correct one.
However, I am still curious to know the reason for the error message so that I can avoid similar issues in the future.
Does anyone know the reason for this type of error messages?
Is there any way to get a more detailed error log that could explain what went wrong and when?