Struggling with filtering data by age

[markjessell]

Hi I am running Terria on:

Debian 10 / buster Latest Terria from github (as of 20/5/2022) GeoServer Version 2.19.4 node.js version 16.15.0

and I want to display a wms layer of dated points from geoserver with time filtering. The temporal filtering in QGIS is happy with the shapefile version of the data, so I assume I have misunderstoood something in the simple.json description of to how to activate it, or that this option isn't available for vector data? The simple.json code is as follows:

{
  "type": "wms",
  "name": "SAXI geochron database clipped time aware",
  "url": "http://13.211.217.129:8080/geoserver/loop/wms",
  "layers":"test_age_date",
  "timeFilterPropertyName":"age_date",
  "startTime":"1500",
  "stopTime":"2500",
  "dateFormat":"yyyy",
  "initialTimeSource":"start"
},

The layer loads fine, but when I click on the Play icon, the whole window goes white. If I try to manually scroll through time all the points show all the time.

All suggestions gratefully accepted.

Mark