Steps to reproduce:
1. Use Empty-RT-Capable-RP.mcpack provided in the attachments, the pack is ideal for testing as it enables ray tracing without modifying any vanilla game files, for ray tracing to be enabled properly, enable it after joining a world, then reload the world (Enabling ray tracing faces issues due to Mojira - Issue MCPE-191513 and Mojira - Issue MCPE-152158)
2. Spawn a copper golem via any method (commands, spawn egg, etc…)
3. Enable and disable ray tracing and observe the difference, as soon as ray tracing is enabled, the eye textures stop rendering entirely
Expected result:
The eyes should still appear with ray tracing, even if they are not emissive as no texture sets are provided, at the very least the color texture should appear.
The issue is different for me. In 1.21.120.24, the copper golem’s eyes are constantly flickering. In 1.21.111, the entire copper golem is flickering. Is this also the case for you now?