Viewxls macro is unable to display Pivot Chart with two different chart types. In sample.xlsx, line and stacked column type is used.

The following error appears in the page:

Error rendering macro 'viewxls' : com.benryan.conversion.ConversionException: java.lang.IllegalArgumentException: Some chart types cannot be combined with other types!

Steps to reproduce

1. Attach sample.xlsx to a page
2. Insert a ViewXLS macro and choose the attached XLS file to display its contents