Thank you for your response. However, we are already fully aware of the points you mentioned, and this issue is unrelated to those points. Even after creating a completely new .fsp file and placing only the plane wave source, the same issue occurs. This issue does not seem to occur with other sources (e.g., Gaussian), but only with the plane wave source. I have attached a GIF file below (I hope it can be seen well in the video).
You are navigating away from the AIS Discovery experience