About 4 days ago, one of my mikrotik devices stopped recording logs to splunk. I checked and found that it was only updated to the latest system 7.15.3 (stable) and set to restart at night, and then it stopped recording logs to splunk. But there are 3 other mikrotik devices that have also upgraded the system OS, but they are recording logs normally. I reset it by pressing 2e), but it still does not record. How can I troubleshoot?