Issue
When changing the filter that is you change filters that are added automatically to the applied to the field of a new or existing policies applied to fieldpolicy, it changes other policies applied to targets as the Applied To targets of other policies as well.
Solution
If you need to change the scoped filter of targets within a policy, then delete the Applied To target that is there and create a new target with the rules that are needed for that policy.
Additional information
After creating a new policy or modifying an existing one it is possible to change what computers it is applied to under the policy's Applied To field.
Select In the Applied to section, click All Windows Computers with Application Control Agent Installed (Target) and click .
Click Add rule to target specific computers.
The You can change the targeted computers can then be changed by adding or subtracting Rules rules for the filter.