Been doing this mission a lot on my new toon.
I rolled a new ToS Captain and I hate skipping ahead to things I have not achieved through normal gameplay, so I have been doing Jabberwocky for the event so far.
In the cut scene when you discover the changeling, your Captain is carrying a default phaser as well as whatever weapon they are actually using. So carrying a mini-gun? The scene will show your Captain and you can see them with both a phaser and the mini-gun in their right hand.
Well, that's what it is for my ToS Captain. I assume that Captains from other factions would experience a similar situation only with their default weapon of choice in place of the phaser pistol.
2) Federation Academy - Tailor:
The avatar is clearly a female, but the voice over is a male voice.
3) Any Mission where you use the grapple gun:
This has been a thing as far back as I remember them adding these to the game, but once you use either the zipline or rappel down in a mission, you are then carrying that grapple gun and have two 'ropes' coming from it going into the ground.
Changing weapons doesn't help.
4) Captain in Space:
In several missions, Jabberwocky and at the end of Uneasy Allies to name a couple, my Captain is pictured in place of my ship. So at the end of Uneasy Allies, for example, after I escape the sphere and beam up, instead of showing my ship at the fore of the ships gathered there, my Captain is standing in space in front of those ships, dwarfing them in fact.