I have set up a page layout using the Altas Feature in QGIS v3.2.3. The layout has been configured to show the location of a polygon and the location of vertices that make up each of these polygons. Alongside this I have added an attribute table to list the X and Y values of each vertex for every polygon. The Atlas feature itself is linked to the polygon shape layer whilst the attribute table is linked to a vertex point layer. And whilst there have been no problems exporting this set-up there is one aspect which I cannot seem to resolve which is that in some instances the attribute table lists vertices from different polygons (rather than listing vertices only for the Altas Feature). I have tried toggling with some of the item properties for attribute table e.g. selecting 'show only features intersecting altas feature' however I believe that the solution lies with the expression filter. Unfortunately I have not been able to set up an expression filter that will work with the Atlas Feature and therefore I am looking for some advice on this.
I have attached an image for reference to the above.