Same post: We just found that in our PROD enterprise Portal 10.9.1, which is deployed on Azure, with Windows 2022 VMs, we have serious WebGL issues with our dashboard, where, the error is like "Too many active WebGL contexts. Oldest context will be lost." Our dashboard has 26 web maps, which are all changed to use the Topographic raster basemap. I attached one screenshot with browser MS Edge, from one of the enterprise Portal Azure VMs. The web maps are loaded randomly when navigating the tabs, e.g., one web map does not load 2 seconds ago now gets loaded this time. The same dashboard works well in our 10.7.1 enterprise Portal on Azure though. Do you have any suggestion how to resolve the issue? Thanks.
