Greetings from Syncfusion.
We have checked the reported scenario at our end. Based on your scenario and replication steps, we have prepared a sample with only two gauges and we can replicate the reported issue at our end. Gauge control has support for responsive behavior based on the client browser’s width and height. IsResponsive property is used to enable the responsive. When we resize the browser or reload the page, then the gauge size will be updated. For this purpose only, isResponsive used.
In your sample, we have checked with set false to isResponsive, then there is no memory leak. So, if you don’t require IsResponsive, kindly remove this property. Kindly check with this with your entire project and kindly reverts with details about what is the purpose you need isResponsive. So that we will consider fixing the reported scenario at our end.