The attached C file is a snippet from a Qt project. In the project there was a function that writes values to many PVs in a loop. What was happening is that some PVs do not get their new value updated immediately but after 3 or 4 seconds. The code shows a similar behavior, two consecutive "ca_put" calls, and the same behavior occurs. I double-checked the database (included in the comments) but there is nothing wrong. I tried to use ca_context_ or ca_task_ but the project crashes maybe because the QE framework is already handling low-level CA. What am I missing here?

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <cadef.h>

int main()
{
    srand(time(0));
    double v1 = ((rand() % 100) / 10.0) * 1E-7;
    double v2 = ((rand() % 100) / 10.0);
    
    chid pvID1;
    chid pvID2;

    ca_task_initialize();
	
    ca_search("Analog_1", &pvID1);
    ca_search("Analog_2", &pvID2);
    ca_pend_io(1.0);

    ca_put(DBR_DOUBLE, pvID1, &v2);
    ca_put(DBR_DOUBLE, pvID2, &v2);
    ca_flush();

    ca_task_exit();
}

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