When building an APK in Unity 6000.3.10f1 with Meta SDKs, shader warnings occur for materials using 'Occlusion Particles Unlit' or 'OcclusionCutoutURP' shaders. The issue can be reproduced by: 1) creating a Unity project in Unity 6000.3.10f1, 2) installing all Meta SDKs, 3) creating an object with a material using the specified shaders, 4) building an APK, and 5) checking the console log for shader warnings.