Other mistake: The game presents, together with bountiful lore and flavour text, very complete profiles for the various characters. There's even a box to click to get even more complete numerical stats about their properties. Just one small insignificant oversight; the character sheets in the menu used to organize the fighters don't show at all the unique Passive Ability each character has and that is their main, hard-coded difference! Which is vital for the gameplay (for instance, the main character autocasts a buff to a random ally every 3 actions, the fire mage makes the target more susceptible to fire each time they hit, etc). So to know the key dynamic of your character (some are based on unique properties of it, such as Diego's "Overconfidence") you just have to field them in battle and find out there from the succinct combat tab what their passive skill is.
Other mistake: With the DLC "The Unending Grimoire", after the good guys captured the titular item, they try to figure out how it works. Aliss' line "it's pocket of malliable time and space" lacks an article ("a pocket").
Other mistake: One of the quests in the Krakkan Peaks, "The Light of the Ages" contains a typo; when you remove the mats, the narrator speaks of "an esotetic-looking symbol", meaning esoteric.
Other mistake: In Miri's mission "Cold Storage", the 5th line of one of the first panels says "unwanted excresence", missing a C in excresCence.
Other mistake: During the negotiation with the dragon in Act 4, there's this line; "Imagine my surprise when Tag's family came-a-knockin', saying we should step aside." The line is spoken according to the text box by Tag himself, while it should be his rival Bink to speak.
Other mistake: When Gunther's little pug Heinrich goes missing for the arc of his bond quest, Gunther is still holding him in the dialogue box. Characters have alternate expressions and versions in their artwork and they even went through the bother of making the dog a playable character for one single mission, it's just odd to see him speak about the missing dog while he is holding it.
Other mistake: In Chapter one, venturing in Ban Machair, the first text adventure node is called "Across and Yonder." During the chess match, the word "Asymmetry" is spelled with two S.