Stuck Push Notification at Sending

[sahilchaddha]

All push notifications with reciever count less 1000 sends properly but large audience push notifications get stuck at Sending and count also does not get updated.Since it is live application i am not able to send push notification with such large audience..Any idea how to debug and why is it stucked ??? All other notifications are sending and recieveing normally but large audience isnt. Its just stuck at Sending

[sahilchaddha]

audience is of 250k devices

[sahilchaddha]

I tried debugging, and i hosted parse-server on my local and sent notifications to 38k devices with log level at verbose, all the notifications were transmitted via apns succesfully but the success notification sent count was at 0 only...But on my hosted parse-server no notifications are sent.Any help ??

[sahilchaddha]

After Debugging found out that when i call other query are returned properly but this specific query does not returns anything...
RestQuery.prototype.runFind in RestQuery.js
does not call function with results..

[sahilchaddha]

Running the same query in mongo shell does not take more than 0.4 seconds but is always stuck in parse-server