I'm the author of the mod "Did You Just Assume My Gender", which is a workaround for script errors, concerning applying the incorrect gender pronoun to the player character, De Sardet.
The mod does not correct the scripting errors, it simply replaces all the opposite gender dialogue files, with the gender the player has chosen.
This is not about the mod, it's about the gender pronoun errors not "fixed" by the mod.

Unfortunately the mod doesn't "Fix" all gender mislabelling errors, as reports to the mod page quickly made clear.
Trying to work out the best way of finding those new errors, lead me to using the Text Folder, mostly used for subtitles to the dialogue, but also appears to include text of notes.

This led to me finding two types of missing file errors:
Type 1: Missing female files that are referenced in subtitle text files, but no file exists in game, this is a complete list
Type 2: Missing female gender pronouns that are NOT referenced in Subtitle (Text) files. These need scripting references, and female files adding.

Type 1, is the complete list, and was fairly easy to find, but type two, is much harder, as you have to work out, when the gender pronoun, is applied to the player, I can't say the list given is complete, but the ones provided are confirmed errors.
Here's the list

Type 1: Missing female files that are referenced in subtitle text files, but no file exists in game, this is a complete list

Dlg_Aphra_Romance_13_F
Dlg_Aphra_Romance_14_F
Dlg_Kurt_Romance_1_F
Dlg_Kurt_Romance_2_F
Dlg_Kurt_Romance_3_F
Dlg_Kurt_Romance_11_F
Dlg_Kurt_Romance_12_F
Dlg_Kurt_Romance_13_F
Dlg_Kurt_Romance_17_F
Dlg_Kurt_Romance_18_F
Dlg_Kurt_Romance_19_F
Dlg_Kurt_Romance_73_F
Dlg_Kurt_Romance_74_F
Dlg_Kurt_Romance_107_F
Dlg_Kurt_Romance_108_F
Dlg_Kurt_Romance_Confirm_5_F
Dlg_Kurt_Romance_Confirm_6_F
Dlg_MQ02_Mage_Inquisitor_16_F
Dlg_MQ06_Investigation_Nativeboy_1_F
Dlg_Siora_Romance_41_F
Dlg_Siora_Romance_43_F
Dlg_SQAU03_Native_Trader_Quest_Talk_69_F
Dlg_SQMT01_Smuggler_After_29_F
Dlg_SQMT05_Debrief_With_Mage_Governor_46_F

These also show up, in "Subtitle" data (Actual folder is just named Text).
I'm sure these are not Voice Dialogue files.
Look more like in game Notes, and a Codex Entry, but still bugs;

Codex_Char_CM_Hero_F
Note_Dlg_MQ06_End_With_NativeChief_3_F
Note_Dlg_MQ06_End_With_NativeChief_17_F
Note_Dlg_MQ06_End_With_NativeChief_24_F
Note_Dlg_MQ06_End_With_NativeChief_49_F
Note_Dlg_MQ06_Investigation_NativeBoy_4_F
Note_Dlg_MQ06_Investigation_NativeBoy_5_F
Note_Dlg_MQ06_Investigation_NativeBoy_10_F
Note_Dlg_MQ06_Investigation_NativeBoy_34_F
Note_Dlg_MQ06_NativeGirl_Convince_46_F
Note_Dlg_MQ12A_Angry_Employee_Talk_23_F
Note_Dlg_MQ13_Constantin_AskHelp_9_F
Note_Dlg_MQ13_Native_Hunter_Talk_88_F
Note_Dlg_MQ13_Native_VictimBrother_Ambiances_6_F
Note_Dlg_MQ13_Native_VictimBrother_Talk_16_F
Note_Dlg_MQ13_Native_VictimSister_AskLinks_14_F
Note_Dlg_MQ13_Shaman_Cathasach_Debrief_20_F
Note_Dlg_MQ21_Council_TalkAboutElection_45_F
Note_Dlg_MT04_CoupDeTat_Debrief_1_F
Note_Dlg_MT04_CoupDeTat_Debrief_2_F
Note_Dlg_MT04_CoupDeTat_Debrief_33_F
Note_Dlg_MT04_CoupDeTat_Debrief_38_F
Note_Dlg_MT04_CoupDeTat_Debrief_70_F
Note_Dlg_MT04_CoupDeTat_Debrief_80_F
Note_Dlg_MT04_CoupDeTat_Debrief_82_F
Note_Dlg_Part1_HereticsVillage_NativeBoy_2_F
Note_Dlg_Part1_HereticsVillage_NativeGirl_2_F

Type 2: Missing female gender pronouns that are NOT referenced in Subtitle (Text) files. These need scripting references, and female files adding.

<Key id="#DLG_CQKU01_CASERN_QUARTERMASTER_2" ref="3">
I would like for his Excellency to meet him.

<Key id="#DLG_CQKU01_TAVERN_ROOKIE_X_12" ref="50">
Yes, but this is his Excellency's own bottle… I don't know if I can…

<Key id="#DLG_MQ01_AMBASS_BRIDGE_TALK_2" ref="2">
Lord De Sardet!

<Key id="#DLG_MQ01_GEOGRAPH_BRIEF_2" ref="0">
That’s a compliment, my lord, out of my mouth!

<Key id="#DLG_MQ10_BURHAN_DEBRIEF_1" ref="2">
Lord De Sardet! What bountiful wind brings…

<Key id="#DLG_SQAP03_PATROLGUY_GIVEINFO_24" ref="50">
You will lead his Excellency, in hope that our men are still alive.

<Key id="#DLG_TALK_LVL04_SIORA_SISTER_18" ref="1">
You are right there and you let him talk about you like this, @NATa Sír@END? That's a strange friend you have there…

One point of note on the last entry, the gender error, is "him" instead of "her".
@NATa Sír@END?, is not "Sir" referring to the player as A Knight ("Sir" is Capitalised), it's the native language phrase "a Sir", and appears to be a familial term of endearment, used by Siora's sister, when speaking to Siora.
Not sure what it means, "my Sister", is my best guess, but it's something like that, and.

Anyway that's what I have for now, but Type 2, likely has more errors, I've not found (yet).