Further investigation reveals that the issue is that the cell D6 is incorrectly evaluated to the value " " instead of the value "". This can be verified by copying the cell D6 and pasting just the text into another cell. So perhaps it is related to the same issue that is causing the cells in the F column to change from "x" to "x " and then "x ".
Further investigation reveals that the issue is that the cell D6 is incorrectly evaluated to the value " " instead of the value "". This can be verified by copying the cell D6 and pasting just the text into another cell. So perhaps it is related to the same issue that is causing the cells in the F column to change from "x" to "x " and then "x ".