Hi,
I've been using the Javascript 4.11 API and one of the primary use cases is to consume images from an ImageServer and perform client side filtering. This is a very similar use case in the v3 API sample (3), and has been previously implemented. The updated application is now using the Javascript 4.11 API and I found that the ImageryLayer redraw() function doesn't update the canvas with the newly filtered data (it does in fact run the pixelfilter). This has been causing quite a bit of grief as it is a core requirement and we also need to avoid caching of the images (as they're time enabled and update very often).
I've linked to a minimal example showing this issue in (1), just download the pastebin and open the html. It's based off the Javascript 4 pixelfilter example, but extended to match our use case and the v3 api's sample more closely.
I suspect either there is a simple fix to this I'm missing, or is it a bug in the API. Hopefully someone here can clarify.
1) Minimal Example showing issue
https://pastebin.com/Fs0WFWzd
2) Base Sample from Javascript API 4
https://developers.arcgis.com/javascript/latest/sample-code/layers-imagery-pixelvalues/index.html
3) Similar Use case in Javascript API 3
https://developers.arcgis.com/javascript/3/samples/layers_raster/
Thankyou in advance
