Text Marker not at right position

Hi!

When i write mtext with my style "ACO" the marker (I) is not where the text is actually written. If i change to another style it works again, but in the style manager the properties are exactly the same.

I attached 3 images to show the problem. Picture 2 shows the marker offset when i try to do a space.

I have the slight impression it could be because of what he writes in the properties content field: Sichtschutz \Pbis ca. 1.60m ab Boden\Pgem. Detailplan Nr. 743_ / /

Any ideas?