Ive been working on app to help making quotes easier at the company where I work. I have this table that I want to search an specific id from the second column called "id_proceso"

I have this dropdown menu in powerapps where I want to display an specific field from all the records that match the search string in the the search function. As you can see the "id_proceso" with value "66506" yields no result , but it does excist in the table which is shown above.

When I put an empty search string in the search function , it does return to me every record as shwon in the image below.

why cant the search function find the matching records in the table when using a valid search string that excist in the table and in the column I am searching in.