Hi,
I used JSAPI v3.26 to develop a web application before and it has been running well, and also, the map service that is being used by this app looks good in Map Viewer Classic of ArcGIS online. As I know, the maps should have the same display in Map Viewer Classic and JSAPI V3.26, also the same display in Map Viewer and JSAPI V4.x. Please see the screenshots below. The image 1 is the screenshot that my map was opened in Map Viewer and JSAPI V4.x app. The label “05-Bedford South” is in the wrong place (It is within the polygon ED04). The image 2 is the screenshot of Map Viewer Classic and JSAPI V3.26 app, and this label is within the polygon ED05 and it is correct. They are opening the same feature service, but the label display is the different. Do you have any idea about the issue in the Image 1 and how to fix it? Thanks for the help.
I have been told that it is better to move JSAPI V3.26 to JSAPI V4.x because JSAPI V3.x will retire. So, I rewrote my app using JSAPI 4.20 but found the issue below and the label display was bad.
Cheers,
Saili
Image 1: Open in Map Viewer

Image 2: Open in Map Viewer Classic
