glitch or intentional: If you cast glamour from a item, that item will become bind

[LunarEmerald]

Intentional and the patch notes mentions as such.

[MurakumoMillennium]

The help window thingy explaining how glamour works that pops right after you unlock it, explains that the gear used becomes bound.

Intentional and the patch notes mentions as such.

Yeah but aside from telling us in the patch notes and in game, there is no warning.