I want to execute below rule but it's not working..
Basically what I want is if Pre, post deployment and technical design fields are empty, no one should be able to move the tickets to "Testing" status.. I have created a rule but I see that I am still able to move the status to testing even if the Pre, post deployment and technical design fields are empty.. Please help and let me know if any corrections are required..

Below is the snapshot of the rule and fields.