I can't tell from this thread what sequence of lines you entered in the fact editor to result in this reading, but I don't see anything alarming.
The Fact Editor will not modify a reverse reading unless a / is included in the Fact Editor line. So 'A r/s B' will create readings 'A r B' and 'B s A'. Editing the line to 'A rr B' will change the first reading, but not the second. If you want to edit the first and delete the reverse, then use / with nothing after it, such as 'A rr/ B'. Similarly, 'A /s B' will delete the 'A r B' reading. This design is mentioned in the 'Fact Editor' section of the Readme.htm file included in the setup zips and installed with the product in Documentation subdirectory. Look in Program Files under 'ORM Solutions' to find your NORMA product installation.
If you want fine-grained control over multiple readings, you can also use the 'ORM Reading Editor' tool window, which lets you add multiple readings per order and adjust reading prioritization.