I face differences for the field %PROGRESS visualizing GANTT chart viz on the desktop app and the online app.
To issue rises when at the desktop app the %Progress bar is properly shown according to what the data source brings (75.00%), wereas in the online app the Progress bar shows a x100 the correct value (7500.00%).
Any hint to solve this difference between outputs?
I just tried replicating your issue in Appsource version of the visual but I could not see the issue. Please help in confirming the version and the source of your xViz chart.