What filter is it?. I know it just can't remember the name. Could be a setting in the filter or one of the components need a setting changed.
Sometimes when you use a certain filter with the selection that is not designed with a selection in mind things get kinda weird without some
editor intervention. ie you would need to alter the filter for your own needs.
Update...Found the filter and I have no issues with it. But I am using Photoshop with filter forge.
Stupid things happen to computers for stupid reasons at stupid times!