Confusion by publishing - Card changes the property

Hi Experts,

I got the following issue and dont't get it😲. I have a card visual at my report. At the right hand side (white rectangle) it is a screenshot in my Bower Bi desktop environment, which is okay, have the right number and the right property. If I publish the report I got the left one ( black rectangle). 

If I increase the size of the writing or increase the cardsize nothing happen. The property stays the same. Has anyone an idea why? I am absolutely confused.

Thanks a lot!