Volume 17 - Part 2:

Not much from me this time. "Nissy Lina" made me raise an eyebrow, but since I guess it has to be a made-up word anyway, it does work. I do love the rest of Ran's lines, by the way. XD

EDIT: Actually, one nitpick if I may. This part at [91%]:
"That's crazy!"
"That's how I roll!"
"Maybe knock it off!"
"Eh heh heh! I hear that a lot."
"Try listening for once!"
These lines actually seem to play off each other in the original, and the result is hilarious. I wish this could have been kept somehow.

Volume 2 - Part 1:

[61%] “‘Kay!” ► It should be ’Kay (different ’ ). [64%] “‘Kay!” the little girl said, beaming brightly. ► It should be ’Kay (different ’ ). [68%] “‘Kay! Thank you, Mister Shiro,” the little ► It should be ’Kay (different ’ ).

Volume 3 - Part 6:

[96%] when they’d separated, To Nell, that screamed ► It should be a period.

Volume 4 - Part 8:

[1%] “Shiori,” he whispered ► Missing period. [96%] They were from this place called Enandel! ► It should be Enander.

Vol. 9 Part 7

21%
struggling to keep his eyes on Iroha-chan
struggling to keep his eyes off Iroha-chan

93%
I guess it's she didn't look
I guess she didn't look

Volume 9 - Part 7:

[88%] adjusted his grip on his word >> should be sword

Vol.5 part 9:

His height seemed to be between five foot two and five foot six.

Previous volume uses metric for characters heights.

Volume 5 - Part 10:

[%] My Ex: The Only You in The World by Kyosuke Kamishiro. ► On the cover it's the (lowercase). 😋

Volume 2 - Part 9:

[36%] "Well, I w-would,” Zappa stammered in return. ► The dialogue's starting double quote is a normal one. [46%] something he couldn't undo. Now everyone ► It should be couldn’t (different ’ ). [48%] absolutely nothing. Once I'd ventured into ► It should be I’d (different ’ ). [62%] warped silhouette.The surrounding trees ► Missing space. [69%] got to be so damn hard!?” Zelphy growled, ► It should be ?! for consistency. [83%] "Get Novem out using the shortest route ► The dialogue's starting double quote is a normal one. [87%] That was when Pini's voice rang through ► It should be Pini’s (different ’ ). [91%] “Why are you staying? Let’s both go and—" ► The dialogue's closing double quote is a normal one. [93%] everyone out of here." Frustration filled her ► The dialogue's closing double quote is a normal one.

V1P6 10%:

Then I asked, <Don't you
Should be opening double quote instead of <

Volume 8 - Part 6:

[78%] It doesn’t seem like anyone’s people here at all... >> don't know if this is just Garyl talking weird but it feels like it's missing something or has too much. (already reported)

Volume 15 - Part 8:

[Generic] The name Ryuunie is written once as Ryunnie.

===

Volume 15 - Part 9:

[Generic] The name Ryuunie is written once as Ryunnie.

===

Volume 15 - Part 10:

[Generic] The name Ryuunie is written once as Ryunnie. [96%] Thank you so much for all your hard work.! ► Remove extra period.

Volume 2 - Part 7:

[89%] their deadly Windbreaker attack. As they raced ► It should be Windcutter?

Volume 2 - Part 1:

[22%] you’ve been hearing is Grida. and she’s in my ► Wrong period. [50%] thing the “boss” is using must be a lockpick.. ► Duplicate period.

Is this page from the original Japanese release not being included in the JNC licensed translation version?
Raw book page

Afterstory P3 67% - 2 instances of Soma-kun - @Lily-Garden mentioned in the discussion thread that this character is from Realist Hero, which I missed partially the character is named Kazuya Souma there.

Volume 7 - Part 10:

[5%] the building where the Prismer had kept. Others ► It should be had been. Already reported. [95%] out of the slump it was in when balancing them, ► It should be a period.