Can't change threshold in Hyper-v device template

Can't change threshold in Hyper-v device template

Hi!
I have a problem.  I can't change threshold in Hyper-v device template. I open Modify Device Template, found HyperVServer, change Disk Write Latency to 0 and push SAVE, then push Update.

But anything happens..Disk Write Latency  was returned to 50- 40 threshold .

ver. Opmanager 11600


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