I have styled the layer to have cluster points rather than individual points. I need to create a webmap (using qgis2web plugin) of the map. Before I styled the layer to have cluster points all my layers showed up fine when producing a webmap. As soon as I changed the style to have cluster points, the preview of my webmap doesn't display the points. Does anyone know the reason why these are disappearing?
Try not clustering the points in QGIS, and instead selecting the Cluster option in the qgis2web dialog. At the moment, qgis2web doesn't detect QGIS3 clustering, but there is an open ticket for the issue (https://github.com/tomchadwin/qgis2web/issues/377).