Describe the bug [2020-10-18 06:05:41] : As I said, it only doesn't work reliable when the device sleep for a long time [2020-10-18 06:06:07] <>: Maybe it's in a deep sleep state or something like that? [2020-10-18 06:06:14] : zapb, it works for me even after a few days of app not being used [2020-10-18 06:06:28] : iPhone SE btw [2020-10-18 06:06:43] : could you tell me which iOS are you using? when it is not working [2020-10-18 06:07:45] : Andrzej: 13.3 [2020-10-18 06:08:05] <>: It's not even recognized when I unlock it [2020-10-18 06:08:26] <>: Only when I open the app [2020-10-18 06:09:20] : zapb, thanks to iOS design, app cannot do anything until it is opened, so it cannot show you a notification if push was not delivered properly in the first place [2020-10-18 06:09:44] : Okay, makes sense then [2020-10-18 06:30:55] : Andrzej, let me know if I can provide you more information for debugging etc. [2020-10-18 06:40:28] : zapb, do you have some old notifications from SiskinIM still in the notification center? or do you have some notifications received (on which you do not act) and then notifications are no longer being delivered? [2020-10-18 06:41:35] : Andrzej, in the last test there was an old notification [2020-10-18 06:42:19] <>: Don't know for the other tests [2020-10-18 06:42:36] <>: Shall I test it without an old notification? [2020-10-18 06:51:06] : if you could, please try as that could help eliminate one of the possible causes [2020-10-18 07:12:38] : ?? [2020-10-18 16:31:03] : > Jeroen, do you use "beta" build er or stable one? [2020-10-20 14:54:13] : Wojtek: it seems that push doesn't work when the device sleeps for a long time and if there are unread messages [2020-10-20 14:54:27] <>: Will do a last test tomorrow [2020-10-22 16:39:20] : Wojtek: it seems reproducible, without unread messages push works fine [2020-10-22 16:40:43] <>: If there are unread messages, push doesn't work when the device idled for a long time

To Reproduce Steps to reproduce the behavior:

1. Maintain unread notification
2. Leave the device idle for a longer time
3. No notification is received/displayed

Expected behavior Notification is received

Details (please complete the following information):

• Siskin Version:
• iOS version: 13.3
• iPhone model: iPhone SE