Can't find Pi Point after create - osisoft

Question

I have C# application that creates a new Pi Point using the code based on 
PI-AF-SDK-Basic-Samples/CreatePIPointsExample.cs at master · osisoft/PI-AF-SDK-Basic-Samples · GitHub 
The point seems to be created ok - here's a screen grab following a tag search in SMT:
My problem is, when my same C# application searches for the newly created Pi Point is doesn't find it.
The code for the search is as follows:
       
private static List<PIPoint> GetPiPoints(PIServer piServer)
        {
            var criteria = GetCriteria("61");
            var foundPoints = PIPoint.FindPIPoints(piServer, criteria).ToList();
            criteria = GetCriteria("63");
            foundPoints.AddRange(PIPoint.FindPIPoints(piServer, criteria).ToList());
            criteria = GetCriteria("64");
            foundPoints.AddRange(PIPoint.FindPIPoints(piServer, criteria).ToList());
            return foundPoints;
        }
private static List<PIPointQuery> GetCriteria(string location)
        {
            List<PIPointQuery> criteria = new List<PIPointQuery>();
            PIPointQuery whereClause1 = new PIPointQuery(PICommonPointAttributes.Location1, OSIsoft.AF.Search.AFSearchOperator.Equal, location);
            PIPointQuery whereClause2 = new PIPointQuery(PICommonPointAttributes.PointSource, OSIsoft.AF.Search.AFSearchOperator.Equal, "o");
            criteria.Add(whereClause1);
            criteria.Add(whereClause2);
            return criteria;
        }
So, my understanding is that this should find all points that have a "location1" attribute value of 61, 63 or 61 AND a "pointSource" of "o" - I have tried uppercase and lower case "o"
From the screenshot, you can see that this is the case for the newly created "Kuba_99x" tag yet it is not found in the search, although thousands of other existing tags are.
Any ideas where I went wrong please?

Answer 1

The Pi code was actually fine. Problem was, my code was filtering the newly created record after the selection.

Answer 2

Location1 is stored as an Int32 on the PI Data Archive. The location parameter needs to be an int instead of string.
Further questions will be addressed at OSIsoft PI Square since you also have a post there.