Before Android GPU Inspector uses a devices for tracing and profiling, it validates the device setup and that the device driver provides good and valid profiling data. Device validation takes about 10 seconds, during which you should see a spinning cube on the device screen.
Once a device passes the validation process, it can be used to trace and profile Vulkan applications. Device validation is a one-time step and results are cached for future runs of AGI. If the device setup changes, such as updating to a different version of Android or the GPU driver, validation will run again.
Please sign up for the developer preview of Android GPU Inspector to get access to the device bits required to pass validation. Device validation will only pass on a supported device that has been setup correctly.