Most probably because you Nexus-switch does not report the threasholds via SNMP.
You can run this command: ./discovery.php -h <hostname> -m sensors -d
and save the output to a pastebin or a textfile and send us here.

/Markus

2017-11-22 8:07 GMT+01:00 Edvinas K <edvinas.email@gmail.com>:
Hello,

Could you tell me why some FEXes temperature thresholds are missing ?

Thanks

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