We have 3 different databases on prem that I am trying to mirror to Fabric.  Twenty of the tables sync with no issues but in all 3 instances there are 2 tables ( all the same tables) that are having issues syncing.  It cannot be a data issue since the data is different in all 3 instances but the error makes me think it is a data / database issue.  The error is below.  

We encountered an error while parsing data file being used, please fix the file and try again. The error is: Exception reading the data file. Exception: Index was outside the bounds of the array., ErrorCode: InternalError, ErrorCode: InputValidationError