Error field is missing when previewing imported data

[Kaloyan2]

Hello, 
I am currently trying to upload from template. 
However the upload shows rows with errors in import set. Unfortunately I am not able to view the error messages in order to fix them

Even if I select the "gear button" and get the errors tab to be displayed first , nothing changes. 
When uploading the same data but in .xls , I am able to see more fields but the "Error" one is still missing and not able to appear. 

[Tony Chatfield1]

Hi, without any specific details or access to your environment it is not possible for the forum to provide a diagnosis.
I would start by reviewing your import/staging table and transform map(s),
confirming that all of the columns in your spreadsheet have matching import table fields and that all of your import table fields are correctly mapped to your target table.

[Kaloyan2]

Thank you Tony
I will start by checking what you suggested , however on first go everything seems like as it should. 

[Tony Chatfield1]

Have you checked the 'Transform Errors' module to see if it contains anything helpful, and\or 'Transform History?
'You could also try a 'Node Log File Browser' browser search for message 'error'.

Perhaps start by uploading 1 or 2 rows and checking that all the import table fields are populated as expected, then look at your transform incase the issue is with your field mapping or transform scripts.