We are aware of an issue with the Intel RealSense D415, D435, and D435i cameras when used with high-brightness projectors, especially laser or laser/hybrid projectors like the Epson Powerlite L615U.
Due to the RealSense D400 series lacking band-pass filters to block visible light, the camera can see the projection, causing distortion and poor performance with Lumo Play.
Intel is aware of this issue, and we are working to rectify it. In the meantime, affected users can try adjusting the RealSense's exposure settings to mitigate the problem. Exposure settings can be accessed by using the RealSense Viewer application, published by Intel or by using the Advanced RealSense Settings window available in Lumo Play 4.1.0 and later.
If you know you will be using a high-intensity projector like the Epson Powerlite L615U, we currently advise against using the Intel RealSense cameras and suggest you use the Orbbec Astra until such time as a permanent solution is found with Intel.