Check you don't have other magic mod installed, i just tested in my computer and no bug with this magic
I have no other magic mods running.
FF7 Mouths Mod IRO TEST
ID: ab7355a7-0534-438a-8ec5-e3db0e9d9333
Version: 1.00
Mouths = 1
Field Models - Objects
ID: 7f1274cf-3bf8-4ae6-a722-d2f374c902fc
Version: 2.1
huge_materia = 1
materia = 0
potions = 0
save_point = 2
Animations
ID: 653bb2b6-3999-4bb0-bc21-2ae299bb7b87
Version: 2.1
f_animation = 0
w_animation = 0
60fps = 0
fba = 0
fbn = 0
fed = 0
fs = 0
Battle Models - Bosses v1.6
ID: 72037c07-0c86-47c0-a6a9-9b3a8838a53d
Version: 1.0
models_air_buster = 2
models_aps = 0
models_bottomswell = 0
models_carry_armor = 0
models_grand_horn = 0
models_dark_nation = 2
models_demons_gate = 0
models_diamond = 0
models_dyne = 2
models_elena = 2
models_emerald = 0
models_gi = 0
models_godo = 0
models_heli_gunner = 0
models_hell_hojo = 0
models_hojo = 0
models_hundred_gunner = 2
models_jenova = 1
models_life_form = 1
models_lost_number = 0
models_keeper = 0
models_motorball = 2
models_palmer = 2
models_proud_clod = 0
models_rapps = 0
models_red_dragon = 0
models_reno = 3
models_ruby = 0
models_rude = 2
models_rufus = 0
models_sample_h0512 = 0
models_schizo = 0
models_ultimate = 0
Battle Models - Characters - v4.3
ID: 710fd8db-7560-4560-a2cf-bae6606b469e
Version: 1.0
models_aerith = 2
models_barret = 4
models_caitsith = 2
models_cid = 3
models_cloud = 5
models_redxiii = 4
models_sephiroth = 3
models_tifa = 4
models_vincent = 3
models_chaos = 0
models_gigas = 0
models_galian = 0
models_hellmasker = 0
models_yuffie = 2
Battle Models - Enemies Disc 1 TEST
ID: a57d17e0-fea1-4479-839a-1f85b7a2eb87
Version: 1.0
models_1st_ray = 1
models_2_faced = 2
models_8_eye = 2
models_aero_combatant = 2
models_ancient_dragon = 2
models_ark_dragon = 2
models_bagnadrana = 2
models_bandit = 2
models_black_bat = 1
models_bloatfloat = 2
models_blood_taste = 2
models_blugu = 2
models_bomb = 1
models_boundfat = 1
models_brain_pod = 2
models_bullmotor = 1
models_cactuar = 1
models_castanets = 2
models_ceasar = 2
models_chuse_tank = 1
models_grand_horn = 2
models_cokatolis = 2
models_lackey = 1
models_crawler = 1
models_cripshay = 1
models_death_claw = 1
models_deenglow = 2
models_doorbull = 1
models_dorky_face = 1
models_dragon = 2
models_eligor = 1
models_flower_prong = 1
models_frogs = 4
models_ghirofelgo = 1
models_ghost = 1
models_gi_spector = 1
models_goblin = 2
models_grashtrike = 1
models_g_combatant = 1
models_grunt = 1
models_guard_hound = 2
models_scorpion = 1
models_hammer_blaster = 1
models_heavy_tank = 1
models_hedgehog_pie = 1
models_heg = 1
models_hell_house = 2
models_hungry = 1
models_jemnezmy = 2
models_jersey = 2
models_kelzmelzer = 2
models_kimara_bug = 2
models_kyuvilduns = 2
models_land_worm = 1
models_madouge = 1
models_malldancer = 1
models_mighty_grunt = 3
models_mirage = 2
models_mono_drive = 3
models_moth_slasher = 1
models_mp = 2
models_needle_kiss = 2
models_proto_machinegun = 2
models_pyramid = 1
models_rocket_launcher = 1
models_sahagin = 1
models_scotch = 1
models_screamer = 1
models_scrutin_eye = 2
models_search_crown = 2
models_smogger = 1
models_sneaky_step = 2
models_soldier_3 = 4
models_sonic_speed = 1
models_combatant = 1
models_stinger = 2
models_sweeper = 2
models_sword_dance = 1
models_tonadu = 2
models_twin_brain = 1
models_under_lizard = 1
models_vargid_police = 1
models_vice = 2
models_w_board = 2
models_whole_eater = 2
models_ying_yang = 1
models_zenene = 2
models_zuu = 2
Battle Textures
ID: f7acf476-4ee6-46c3-81f5-2329081c0062
Version: 1.0
battle_bg = 3
Remako HD Graphics Mod v1.0 - Pre-Rendered Backgrounds (field + char + minigames)
ID: 5ef70bfa-699c-4a92-b2b7-30ecea25aa10
Version: 1.0
remako_field = 1
Gameplay - Tweaks and Cheats
ID: 3dbdfa3b-d97f-4cfc-9db8-223dbe0152bc
Version: 2.2
ar = 0
cf = 0
dm = 0
isl = 0
i = 0
li = 0
lcs = 0
lt = 0
nrb = 0
spa = 1
sc = 1
sbo = 1
Media - Music and Sound
ID: 93f6aa44-d8a0-4ac1-98bc-2fca17d84b6b
Version: 1.0
music = 1
sound = 0
Menu - Avatars and Backdrops
ID: aec06415-0f12-410b-ac43-f4e89e363729
Version: 2.1
avatars_aerith = 2
avatars_barret = 2
avatars_cait_sith = 2
avatars_chocobo = 2
avatars_cid = 2
avatars_cloud = 2
avatars_cloud_young = 2
avatars_red_xiii = 2
avatars_sephiroth = 2
avatars_tifa = 2
avatars_vincent = 2
avatars_yuffie = 2
game_over = 1
prelude = 2
start_menu = 1
Menu Overhual - 3.0 TEST
ID: 6b28a957-67ac-4304-a914-e888b5311061
Version: 1.0
beacause = 0
menu = 1
items_materia = 4
controls = 1
nbb = 0
Kela51Magics
ID: 58e7a4b7-6b9b-45a4-87a3-6a25aa3b6cb9
Version: 1.01
satkelamag = 1
World Models - Vehicles
ID: 0e056cf4-7b37-49e1-aa9e-c57bc73db954
Version: 2.0
buggy = 1
chocobo = 1
highwind = 1
submarine = 1
tiny_bronco = 1
World Textures
ID: 35e0906d-7da4-4da2-b10d-87149d291a38
Version: 2.0
world_bg = 2