HI @djeber, thanks for your message. Could you please confirm if this is not related to the content, like if it fails when you send a url with a specific length, or the character encoding, etc? Could you please paste a screenshot of the notification job details? It usually contains some stats that are useful for troubleshooting. For the moment we will try to reproduce the same notification you sent. Thank you!

i tried the same url and the notification failed

Hello, we're narrowing down the problem, could you please comment the 310 line in includes/class-perfecty-push.php using the plugin editor, go to Plugins > Plugin editor > Select Perfecty Push Notifications.

includes/class-perfecty-push.php:

//		$this->loader->add_action( 'admin_init', $plugin_admin, 'check_cron' );

This will disable the cron checker, which we suspect is having conflicts with the notification job scheduler.

sorry for taking long to reply, I've done as you instructed me but the problem still persist

Could you please confirm that the cron-check entries are not appearing in the logs? They should not appear at all after you commented this line:

//                    $this->loader->add_action( 'admin_init', $plugin_admin, 'check_cron' );

They look like:

2021-07-06 17:02:17 | INFO | Next ticker scheduled at: 2021-07-06 18:03:16
2021-07-06 17:01:30 | INFO | Cron check ticked
2021-07-06 16:59:51 | INFO | Next ticker scheduled at: 2021-07-06 18:00:51
2021-07-06 16:59:37 | INFO | Cron check ticked
2021-07-06 16:58:37 | INFO | Next ticker scheduled at: 2021-07-06 17:59:37
2021-07-06 16:58:29 | INFO | Cron check ticked
2021-07-06 16:57:24 | INFO | Next ticker scheduled at: 2021-07-06 17:58:24
2021-07-06 16:57:23 | INFO | Next ticker scheduled at: 2021-07-06 17:58:23

yes they are not appearing after commenting the line

this is from the plugin log for a failed notification after commenting the code you told me

2021-07-14 07:56:05 | INFO | Scheduling a broadcast notification

2021-07-14 07:56:05 | DEBUG | Array ( [title] => MJB Tech Tips [body] => وكالة الرقابة الفرنسية تغرم جوجل 591 مليون دولار لفشلها في التفاوض على صفقات عادلة مع ناشري الأخبار المحليين [icon] => https://mjbtechtips.com/wp-content/uploads/2021/06/cropped-icone.png [image] => https://mjbtechtips.com/wp-content/uploads/2021/07/2021-07-13-image-29-j.webp [require_interaction] => 1 [extra] => Array ( [url_to_open] => https://mjbtechtips.com/2021/07/%d9%88%d9%83%d8%a7%d9%84%d8%a9-%d8%a7%d9%84%d8%b1%d9%82%d8%a7%d8%a8%d8%a9-%d8%a7%d9%84%d9%81%d8%b1%d9%86%d8%b3%d9%8a%d8%a9-%d8%aa%d8%ba%d8%b1%d9%85-%d8%ac%d9%88%d8%ac%d9%84-591-%d9%85%d9%84%d9%8a/ ) )
2021-07-14 07:56:05 | INFO | Scheduling job id=68, result: 1

Yes, it's apparently related to wp-cron. We're changing how we execute the notification jobs so that this doesn't affect the execution. This is related to https://stackoverflow.com/questions/60374317/wordpress-cron-wp-schedule-single-event-action-not-always-working

Hi have experienced this in the past when the link sent was a zoom meeting link. I am not able to reproduce it every time and on all servers.

Same problem here, almost 1000 subscribers but most notifications fail around 200 (one never even get to 30).
In logs only this:

2021-07-29 09:04:54 | INFO | Cron check ticked

2021-07-29 09:05:11 | INFO | Next ticker scheduled at: 2021-07-29 09:06:11
2021-07-29 09:06:15 | INFO | Cron check ticked
2021-07-29 09:06:17 | INFO | Next ticker scheduled at: 2021-07-29 09:07:17
2021-07-29 09:07:17 | INFO | Cron check ticked
2021-07-29 09:07:19 | INFO | Next ticker scheduled at: 2021-07-29 09:08:19

It's 9:11 here, push count is struck

Hello, this is something happening in WordPress and require changes on how to handle the crons. We will make the appropriate adjustments and we estimate that it could be ready in two weeks. Thank you!

We've implemented a mechanism to unleash the stalled jobs #93 that will fix this bug, and will be included in 1.3.3. This is prior to the general refactoring to the notification job execution we will implement in 1.4.0.

This has been released in v1.3.3

A new version with performance improvements has been released in v1.4.0. Please check: https://docs.perfecty.org/wp/performance-improvements/