Are you still trying the state.json file you’ve attached in your previous post? Or are you re-generating your glance file via the save state button? if you’re using your aforementioned state.json file, you need to modify your sources object like so:
"id": "6",
"group": "Sources",
"name": "TrivialProducer",
"props": {
"name": "test.nii",
"type": "vtkImageData",
"dataset": {
"name": "test.nii",
"url": "....."
}
Easiest way is to still re-generate the glance file.