I have created a ProcessBook display saved as an SVG file. In the display, I am using a "Value" box to display the value of an AF Attribute associated to an AF Element. The AF Attribute is a "Formula" attribute. When viewing the display in ProcessBook the values are showing correctly. However, when I host the display in a PI Graphic web part I get an error message: "Unsupported data reference - \\server\path|attributeName result not found.". Other attributes such as a PI Point or a static string value all display as expected.
Is there some configuration that I am missing or does the PI Graphic web part not support Formula Attributes for some reason?
The formula I am using is a simple logic statement (if / else). I tried a very simple formula with no parameters "" but it resulted in the same error.
Thanks for your help