1Week interval fails with specific data

[ktarbet]

See the test in mixed_record_types.c
Works with
#define NUM_TS_VALUES 1221
but fails
with larger number of data points:
#define NUM_TS_VALUES 2221

basic details below.
const char* date = "15Jun2024";
const char* time = "1200";

status = write_ts_mixed(ifltab, "//GAPT_DAM/FLOW-LOCAL//1Month/GAPT_HMS_FORECAST_doubles_first/", 1);
if (status != STATUS_OKAY) {
return status;
}