Summon Ghoul - Resources taken, no ghoul

[BLORTH]

- (3 times) You bend your mastery over death upon the corpse at your feet. Suddenly, the corpse emits a fetid breath and a low growl as it stands, transformed into a ghoul by your magic. You spent 10 Magic Points to imbue it with unlife. (2022-02-06 12:02:31).
- You step inside Nash Technical Library. (2022-02-06 12:02:26).
- You step outside of Megalomarketing. (2022-02-06 12:02:04).
- You bend your mastery over death upon the corpse at your feet. Suddenly, the corpse emits a fetid breath and a low growl as it stands, transformed into a ghoul by your magic. You spent 10 Magic Points to imbue it with unlife. (2022-02-06 12:01:57).

I was charged the appropriate AP/MP for four ghouls. I only received three.

[Meric]

Yep, seems to happen across most pets / classes. Just happened to me on my Lich below.

- (2 times) You draw upon your mastery over death to call forth a manifestation of lost spirits. Soon there is an eerie glow, and a ball of light begins to sway and weave between your hands. You spent 15 Magic Points to create the Will-O-Wisp. (2022-02-06 18:27:43).

[Deathykloak]

It can also happening when smashing zombies together for a necrophage, just had it happen right after a zombie failed to summon. I ended up getting 3 out of the 4 zombies, then used summon necrophage, but the necrophage simply failed to form and the zombies vanished. It used the appropriate ap/mp, so far as I can tell.

- (4 times) You weave your death magicks and solemnly intone words of binding. Soon, a Zombie rises up, animated by your magic. You spent 10 Magic Points to wake it from the dead. (2022-02-06 23:20:45).
- You call upon your mastery of the necromantic arts to fuse together the forms of several of your undead servitors. Soon you manage to create a bloated, voracious creature, full of mouths that hunger for flesh and arms pawing the air in every direction. (2022-02-06 23:20:52).

[BLORTH]

To add on to this - corpses aren't being consumed by the summon either.

[Kandarin]

Corpses being left was a bug that has been resolved in the last patch.

As for the lack of summons - I've exhaustively dug through every pet class and skill in many circumstances on devserver and could never reproduce this bug on any level. That means the cause is live-server performance.