The bug
Glowing mobs stop glowing when invisible.
To reproduce
Spawn a mob
Hit it with a spectral arrow
Throw a potion of invisibility at it
→ ❌ The mob is no longer highlighted
Related issues
is duplicated by
relates to
Attachments
Comments

[media]
The glowing effect seems to only affect visible part now.
[media]
Confirmed for 19w46a.
Still in 1.15-pre1.