Audio problem: Cable, Erik the Red and Captain America all have the exact same voice.
Night of the Sentinels: Part 1 - S1-E1
Audio problem: When Cyclops is saying "Okay Storm, do your thing," his mouth movement does not match the dialogue. (00:18:31)
Night of the Sentinels: Part 2 - S1-E2
Audio problem: When the tower guard is saying "Put me down, you flying freak," his mouth is not moving. (00:06:54)
Audio problem: When Professor X says "I was wrong Wolverine. I should have listened to you," his mouth is completely closed. (00:19:50)
Audio problem: When Callisto says to Cyclops "away from those who fear us," her mouth is completely closed. (00:09:20)
Slave Island - S1-E7
Audio problem: When Trask is saying "All it requires is an outside power source," his mouth does not move in sync with the last two words. (00:10:20)
Slave Island - S1-E7
Audio problem: When the decapitated Sentinel body crashes to the ground, the sound of it crashing against the concrete is too soft for its size. It sounds like something slamming against a metal appliance when it should sound more like a car crashing into a wall, only louder. (00:13:50)
Slave Island - S1-E7
Audio problem: When the giant wave of water from the burst dam is heading towards Cable, Hodge and the Leader, Cable begins laughing maniacally. After the wave crashes down on them and floods the area, you can still hear Cable laughing even though he should be submerged underwater. (00:19:25)
Audio problem: When Cyclops shoots an optic blast at War's feet during the battle at Stone Henge, the groan that War lets out is the same sound used whenever Wolverine's groans. (00:18:24)
Days of Future Past: Part 1 - S1-E11
Audio problem: When Bishop is saying "They treat the rest of us just fine," his mouth is not moving for the last two words. (00:04:53)
Days of Future Past: Part 1 - S1-E11
Audio problem: When Beast says to Gambit "Though I am always in haste, I am never in a hurry," his mouth is completely closed for most of the line. (00:11:30)
'Til Death Do Us Part: Part 1 - S2-E1
Audio problem: When the Friends of Humanity are approaching the mutant that looks like a werewolf, they are saying "No more mutants," and none of them are pressing their lips together to produce the "M" sounds when saying "more" and "mutants." (00:08:37)
Audio problem: When Storm is saying "But I do know that his thoughts were with us today," her mouth isn't moving. (00:19:00)
Audio problem: When Magneto is saying "Strange. What would restore your...," his mouth remains wide open and unmoved after saying "restore," which would make it impossible to then say "your." (00:19:45)
Audio problem: When Barbarus says "Get them!" he says the word "them" without closing his mouth. It's not possible to say "them" without closing your mouth at the end of the word. (00:20:10)
Audio problem: When Jean Grey exclaims "No!" after Ms. Marvel says "This ends now," she is speaking in Ms. Marvel's voice. (00:18:59)
Audio problem: When Beast is saying "If anything happens to her," his mouth is wide open for the last three words. (00:13:15)
Mojovision - S2-E11
Audio problem: When Mojo is twirling around in a circle and saying "Am I standing?" to Major Domo, you can see his mouth is wide open for the entire line. (00:04:10)
Chosen answer: It says MPO "First Exemplary Printing House" which is a real printing company in Russia founded by Ivan Dmitrievich Sytin in 1889. There seems to be something about "named after..." as well.
Sierra1 ★