Post Processing Scripts not saving

[Tom-kt]

The retraction tower only goes to 5mm. I need up to 7mm. I followed the instructions to open Post Processing Script. I changed the value from 5 to 7. How does it save? I clicked on close. Closed Cura (5.1), reopened it and it still is only 5 tall(5mm). Now by the slice button, there is a </>1 next to it. If I click on the </>1 it goes back to the Post Processing Script with the change made. But it doesn't change the tower.

[5axes]

Change Slice Generate the GCode