Lesser spellbound wand imbued with Cleric Magic Domain magic missile burns level 2 memorized cleric spells instead of charges. Initially equipping the wand works properly, but resting, relogging, going through a server transition, or randomly after a period of time reverts to burning memorized spell slots. The wand hotbar slot has to be cleared and reset for the wand to work again. I suspect it has to do with the cleric MM and wand MM both being castable from the special spontaneous casting radial.
I haven't tried it with other spells as I only have the one wand. I also don't know if it would do it if I dropped magic domain for something else as I took cleric at lvl 1 and can't change domains without a token.
Moving the wand to a different radial might solve the issue. Just a thought.