Bartender 2021 database connection with Text file header in first row NOT WORKING Follow

Hi ,

We have existing BT10.1 which we are migrating with BT2021. We have text file with | delimiter. 

Issue:

We have file structure as below

Material Desc| Batch|

MA12345|0012345

With the above file , when we use BT2021 database connection with Text file and first row is a header, when we do the setup getting the below error.

The Text file header line, contains empty or invalid field names. 

Can advice how to achieve this. I want my header fields to be displayed so that we can map the fields rather than displaying Field1,Field2. We have 50 over fields to map.