Normally, without Ray Tracing on the items and maps placed in glow item frames also emit light as the glow item frame does, but with Ray Tracing on only the glow item frame emits light. This results in maps completely blocking the light emitted from glow item frames, rendering them useless when Ray Tracing is activated. 

Steps to Reproduce:

1. Open any world with Ray Tracing on
2. Place a glow item frame
3. Place a map or item in the glow item frame

Observed Results:

The item and map placed in the glow item frame did not emit any light with Ray Tracing on

Expected Results:

The item and map should emit light when placed in the frame, as this would match the functionality without Ray Tracing and would allow for glow item frames to still function when a map is placed in them.