Dyno Queue pop doesnt work as expected

[Ashwinikmurthy]

If the thread to consume the messages is started first and then we push the messages queue, the push works fine but , pop doesn't happen at all. The timeout in pop is set 1 day.
here is the sample code we are using:
Thread 1 - pop
ExecutorService executorService = Executors.newSingleThreadExecutor();
Runnable runnable = ()->{
while(true) {
V1Queue.pop(1,1,TimeUnit.DAYS).forEach(DynoQueueMain::processMessage);
}
};
Runnable runnable1 =()->{
for(int i=0;i<5;i++) {
Message m = new Message("id-"+i, "payload-extra-"+i);
messages.add(m);
V1Queue.push(messages);

        }
    };
    executorService1.submit(runnable1);

version of dynomite 0.5.7

After the restarting the application , the pop is done.
The code gets stuck in
while(this.prefetchedIds.size() < messageCount && this.clock.millis() - start < waitFor) {
Uninterruptibles.sleepUninterruptibly(200L, TimeUnit.MILLISECONDS);
this.prefetchIds();
}
though the messages are pushed after the thread is started.
Steps:
start the consumer thread
set the timeout 1 day
later start pushing the messages
the message gets pushed.
pop doesnt happen