You need to specify the field ID of the associated table, not 1020. 1020 is, as shown in the help, for a results list.
So use (and insert the table ID for the table field you want to refresh e.g. 53687202):
PERFORM-ACTION-TABLE-REFRESH <table_field_ID>
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PERFORM-ACTION-TABLE-REFRESH <table_field_ID> [ <start_row> ] [ <number_to_retrieve> ]
Refreshes a table. You can optionally specify a start row and a maximum number of rows to retrieve.
If the action is for a results list, use reserved field ID 1020.
This command is valid for all types of table fields.