We are not aware of the described issue. However, there is a memory increasing behavior that appears in some situations with the VisualizationLayer. You can see it in our feedback portal
and check if the suggested workarounds will resolve your issue as well. Basically, if you are using a version of UI for WPF older than Q1 2016, you can try setting the UseBitMapCahe property of the VisualizationLayer to False.
If this doesn't help you can open a new support ticket and send a project demonstrating the issue.
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