Odd picture behaviour

[Darkv]

Hello,

I am using FM Dev 7 and have observed an odd behaviour of pictures inserted in a layout.

For example I have a graphic for a title bar that doesn't change horizontally. So I created a picture file with a width of 1 pixel to save file space.

In FileMaker I inserted the file and changed the width to lets say 200 pixels. I work mainly on a Mac and there everything was ok.

But as soon as I opened the database on a windows machine the picture didn't show correctly. The opacity of the picture decreased to the right side. I attached a picture with the incorrect and correct display.

As file format I tried different types: tiff, gif, png to no avail. I have the latest updates installed.

Is this a known bug? Does FM 8 solve that problem?