Grafana Alert going from alterting state to Ok only when all conditions have value

Grafana Version : Grafana v7.4.5

I have 3 OR condition for my alerts to fire. The issue is that the state of the Alert moves from Alert to Ok state only when all the 3 condtions have values in them meaning they should not be null data. I have situation where out of 3 only 1 will have active value at a given time and the others will be null values.

Expection is that the condition should evaluate on true as its an OR condition and ignore the no value conditions. Kindly guide me on a soution here