OS agent stats issue

Hi, I am using xormon 2.3.21 and xormon-agent-1.0.3-1.

I have 4 physical servers, the same HW, OS and workload. They are pretty idle. Only one of them shows stats properly, other have "empty spots" in charts. Agent service is running:

[root@xxx log]# systemctl status xormon-agent.service

● xormon-agent.service - Xormon Agent

   Loaded: loaded (/usr/lib/systemd/system/xormon-agent.service; enabled; preset: disabled)

   Active: active (running) since Tue 2026-09-29 15:35:33 CEST; 1 week 2 days ago

 Invocation: 547364cfccc8465dad486b4cab9f5df4

  Process: 3926 ExecStartPre=/opt/xormon-agent/getsysuuid.sh (code=exited, status=0/SUCCESS)

  Main PID: 3958 (xormon-agent)

   Tasks: 75 (limit: 3355442)

   Memory: 67.1M (peak: 80.2M)

    CPU: 29min 28.467s

   CGroup: /system.slice/xormon-agent.service

       ├─  3958 /opt/xormon-agent/xormon-agent

       └─3463779 vmstat 60 2

Sep 29 15:35:33 xxx systemd[1]: Starting xormon-agent.service - Xormon Agent...

Sep 29 15:35:33 xxx systemd[1]: Started xormon-agent.service - Xormon Agent.

I dont see anything usefull in logs:

tail -25 xormon-agent.err

2026-10-09 10:38:00 [ERROR] [linux_syslog] Failed to execute dmesg command: command execution failed: exit status 1

2026-10-09 10:38:00 [ERROR] [application] failed to collect syslog entries: command execution failed: exit status 1

tail -25 xormon-agent.log

2026-10-09 11:04:00 [INFO] [application] Configuration Collector 'linux_jobs' collected 1 configurations

2026-10-09 11:05:00 [INFO] [application] Collecting metrics at 2026-10-09 11:05:00.045614456 +0200 CEST m=+847766.300638440

2026-10-09 11:05:00 [INFO] [application] SysLog Collector collected 0 entries

2026-10-09 11:05:00 [INFO] [application] Configuration Collector 'linux_lvm' collected 0 configurations

2026-10-09 11:05:00 [INFO] [application] Collector 'linux_nfs' collected 0 entities

2026-10-09 11:05:00 [INFO] [application] Configuration Collector 'linux_baseconf' collected 0 configurations

2026-10-09 11:05:00 [INFO] [application] Configuration Collector 'linux_multipath' collected 0 configurations

2026-10-09 11:05:00 [INFO] [application] Configuration Collector 'linux_pressure' collected 0 configurations

2026-10-09 11:05:00 [INFO] [application] Configuration Collector 'linux_memory_paging' collected 1 configurations

2026-10-09 11:05:00 [INFO] [application] Configuration Collector 'linux_pgs_device' collected 1 configurations

2026-10-09 11:05:00 [INFO] [application] Configuration Collector 'linux_fs' collected 15 configurations

2026-10-09 11:05:00 [INFO] [application] Collector 'linux_cpu' collected 1 entities

2026-10-09 11:05:00 [INFO] [application] Adding 21 architectures to buffer

2026-10-09 11:05:00 [INFO] [application] Adding configurations to buffer

2026-10-09 11:05:00 [INFO] [application] Adding 0 syslogs to buffer

2026-10-09 11:05:00 [INFO] [application] Configuration Collector 'linux_network' collected 5 configurations

2026-10-09 11:05:00 [INFO] [application] Configuration Collector 'linux_io' collected 1 configurations

2026-10-09 11:05:00 [INFO] [linux_process] Total processes with diffs calculated: 1628

2026-10-09 11:05:00 [INFO] [linux_process] Processes passing timeDiffLimit (2s): 1

2026-10-09 11:05:00 [INFO] [linux_process] Final top processes selected: 1

2026-10-09 11:05:00 [INFO] [linux_process] Building metrics for 1 top processes

2026-10-09 11:05:00 [INFO] [linux_process] Collection complete: 1 entities, 1 configs, 1 architectures

2026-10-09 11:05:00 [INFO] [linux_process] ========== Collection Cycle Complete ==========

CPU OS stats:

CPU OS % is empty (and other stats).

Could you please help?