Hello,
I am having a similar issue.
I created a new csv file with existing data, to create a new feature layer. This layer's review table was then selected as the source in a serial chart dashboard element (the layer itself has no data to show, as there is no location attributed to the data).
Using the review table, the dashboard element is created without difficulty. However, any change to the csv file and subsequent updating in ArcGIS, is reflected in the csv file itself, but is NOT reflected in the associated dashboard element OR the review table associated with the feature layer.
I have tried to append data to the feature layer (cannot be done without location details); also to create a new element using the updated csv to no avail. Editing is enabled for all layers and refresh time is set to 0.5 minutes.
What might I be missing?
Thanks