@timestamp field is not getting added as a selected field ( adding as a column )

Versions (relevant - OpenSearch/Dashboard/Server OS/Browser):
OpenSearch - 2.17.0
OS - Windows 11

Describe the issue:
When we try to add @timestamp to the selected fields that it should appear in the table adding it as a column it doesn’t get added it only get added in popular fields.
The other fields all are getting added

Configuration:

Relevant Logs or Screenshots:

@ajitw That is expected. Your index pattern was created without selecting time field.
Recreate the index pattern and point the @timestamp as your time field.