When you try to dye a normal undyed, black text, sign with a glow ink sacs, it doesn't actually make the signs glow, it only consumes the glow ink sacs in the inventory.
MCPE-117505
Glow Ink Sacs doesn't actually make the undyed signs glow
Resolved
Works As Intended
1
It's supposed to make the text glow, not the sign. It behaves the same on Java and was mentioned on both changelogs, so I'm resolving this as WAI.