Disobedient emissivity

[Patomosm]

I don’t know if the cause of the issue could be the same, but enabling Continuity’s emissivity in the video settings produces this strange visual effect - look at crimson stem in the video below.
However, the issue doesn’t seem to be consistent with the player’s movements. What I mean is that the emissivity disappears apparently at random, without any fixed rule related to distance and/or viewing angle.
In the video it’s Continuity for the newly released Minecraft 26.3 — no shader mode using the FeelTrue texture pack.

Emissivity-Continuity.mp4

Originally posted by @Patomosm in #573