queryHistory returns NaN when interpolating

Module Development
,
1

In Ignition 8.3.2 I am getting NaN value at 2025-12-15 12:05:56. I have checked the raw data points, inside perspective, which has a value at 2025-12-15 12:05:22 and 2025-12-15 12:05:56, so I was expecting the queryHistory on the module-side to also have a value at this time.

I have the queryHistory() method called with:

// Queried dataset
BasicStreamingDataset tagHistoryDataset = new BasicStreamingDataset();

// Query parameters
BasicTagHistoryQueryParams queryParams = new BasicTagHistoryQueryParams(
                tagPaths,
                new Date(startTime),
                new Date(endTime),
                1,
                TimeUnits.SEC,
                AggregationMode.Average,
                ReturnFormat.Wide,
                alias,
                Collections.singletonList(AggregationMode.Average)
        );

// Query Flags
Flags mask = new Flags(TagHistoryQueryFlags.IGNORE_BAD_QUALITY 
                       | TagHistoryQueryFlags.BOUNDING_VALUES_YES);
// Apply flags
queryParams.setQueryFlags(mask);

// Query for Tag History
TagHistoryManager.queryHistory(queryParams, tagHistoryDataset);

To confirm that I had a value, I checked in perspective (with interpolation off) that it has a value:

image
image846×179 7.3 KB

And my logger output for the resulting dataset from queryHistory has:

image
image967×277 20.4 KB

I think that the interpolation calculation for this is failing at 2025-12-15 12:05:56 and giving me the NaN.

I would like advice or pointers to help me correct this solution.