Unlike almost every previous mob with glowing eyes (e.g., phantom, enderman), which render their eye overlays over the whole model, the creaking's eyes texture is rendered only over the head.

This is much more resource pack unfriendly than the precedent, and hampers the ability of resource pack makers to add other emissive parts to the creaking while inconsistent with the other mobs which have full cover.

This inconsistency is notable as even though the shading of the eyes for other mobs was recently changed to match the breeze and creaking (see MC-276988), they did not have the uvs changed and retain full parity with the base texture, implying that this is remains a desirable option.

This issue also applies to the breeze where it is being tracked at MC-269523.

This is a separate problem to MC-278515, which doesn't happen all the time and might be a wider rendering issue.