Out of 10070 infobox journals, 119 have an empty abbreviation parameter, 9562 have the same as guessed by the bot, 389 have something different. (0 have no computed abbreviation)

The first 50 mismatches:

page title infobox title infobox abbrv bot guess validate lang matching LTWA patterns
Akropolis: Journal of Hellenic Studies Akropolis [Edit]

Akropolis [Edit]

Akrop.: J. Hell. Stud. [Create]

Akrop: J Hell Stud [Create]

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-polis	-p.	mul
journal	j.	fre, eng
hellen-	hell.	gre
helléni-	hell.	fre
Studie	Stud.	dut
studi	n.a.	ind
studi-	stud.	ind, nor
studies	stud.	eng
Antonie van Leeuwenhoek (journal) Antonie van Leeuwenhoek Antonie van Leeuwenhoek [Edit]

Antonie van Leeuwenhoek [Edit]

Antonie Leeuwenhoek [Edit]

Antonie Leeuwenhoek [Edit]

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Antonie	n.a.	mul,ext
-ton	-t.	eng
BMC Microbiology BMC Microbiology [Edit]

BMC Microbiology [Edit]

BMC Microbiol. [Edit]

BMC Microbiol [Edit]

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microbiolog-	microbiol.	fre, eng
BMJ Mental Health BMJ Mental Health [Edit]

BMJ Mental Health [Edit]

BMJ Ment. Health [Edit]

BMJ Ment Health [Edit]

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mental-	ment.	eng, fre
heal-	heal.	eng
health	n.a.	eng
Bayyināt Bayyinat [Edit]

Bayyinat [Edit]

Bayyināt [Edit]

Bayyināt [Edit]

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Carnets Geol. Carnets Geol. [Edit]

Carnets Geol [Edit]

Carnets Geol, [Create]

Carnets Geol, [Create]

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carnet	n.a.	fre
Chemistry: A European Journal Chem. Eur. J. [Edit]

Chem Eur J [Edit]

Chem.: Eur. J. [Edit]

Chem: Eur J [Edit]

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chemist-	chem.	eng
europ-	eur.	mul
journal	j.	fre, eng
Chinese Annals of Mathematics, Series B Chin. Ann. Math. Ser. B [Edit]

Chin Ann Math Ser B [Edit]

Chin. Ann. Math. B [Edit]

Chin Ann Math B [Edit]

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Chinese	Chin.	eng
annal-	ann.	eng, fre
mathemat-	math.	fre, eng
serie	ser.	mul
series	ser.	eng
série-	sér.	fre
EMBnet EMBnet.journal EMBnet.journal [Edit]

EMBnetjournal [Edit]

EMBnet.j. [Create]

EMBnetj [Create]

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journal	j.	fre, eng
Fondation Louis-de-Broglie Annales de la Fondation Louis de Broglie Ann. Fond. Louis de Broglie [Edit]

Ann Fond Louis de Broglie [Edit]

Ann. Fond. Louis Broglie [Edit]

Ann Fond Louis Broglie [Edit]

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annal-	ann.	eng, fre
fondation-	fond.	fre
Humana.Mente Humana.Mente [Edit]

HumanaMente [Edit]

Hum..Mente [Create]

HumMente [Create]

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human	hum.	eng, hun
mente	n.a.	spa
Johnson Matthey Technology Review Johnson Matthey Technol. Rev. [Edit]

Johnson Matthey Technol Rev [Edit]

Johns. Matthey Technol. Rev. [Edit]

Johns Matthey Technol Rev [Edit]

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Johnson	Johns.	eng
technolog-	technol.	mul
review-	rev.	eng
Limnology and Oceanography: Methods Limnol. Oceanogr. Methods [Edit]

Limnol Oceanogr Methods [Edit]

Limnol. Oceanogr.: Methods [Create]

Limnol Oceanogr: Methods [Create]

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limnolog-	limnol.	mul, hun
oceanograph-	oceanogr.	fre, eng
océan-	ocean.	fre, mul
-graph-	-gr.	eng
method	n.a.	eng
Northern Rhodesia Journal '''Northern Rhodesia Journal''' NJR [Edit]

NJR [Edit]

Northern Rhod. J. [Create]

Northern Rhod J [Create]

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Rhodesia	Rhod.	eng
rhodesia-	rhod.	eng
journal	j.	fre, eng
Novel: A Forum on Fiction Novel [Edit]

Novel [Edit]

Nov.: Forum Fict. [Create]

Nov: Forum Fict [Create]

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novel-	nov.	eng
forum	n.a.	lat, fre, eng
ficti-	fict.	fre
Questions: Philosophy for Young People Questions [Edit]

Questions [Edit]

Quest.: Philos. Young People [Create]

Quest: Philos Young People [Create]

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question-	quest.	fre, eng
philosoph-	philos.	mul
young-	n.a.	eng
people	n.a.	eng
The Critical Review (Chinese journal) [[{{native name{{!}}zh{{!}}学衡{{!}}italics=off}}]] Xueheng [Edit]

Xueheng [Edit]

{{native name{{!}}zh{{!}}学衡{{!}}ital.=off} [Create]

{{native name{{!}}zh{{!}}学衡{{!}}ital=off} [Create]

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}

all
itali-	ital.	ita, fre
The Uganda Journal The Uganda Journal [Edit]

The Uganda Journal [Edit]

Uganda J. [Edit]

Uganda J [Edit]

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Uganda	n.a.	eng
journal	j.	fre, eng
Topic: The Washington & Jefferson College Review Topic [Edit]

Topic [Edit]

Top.: Wash. Jefferson Coll. Rev. [Create]

Top: Wash Jefferson Coll Rev [Create]

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topic-	top.	eng
Washington	Wash.	eng
-ton	-t.	eng
Colleg	Coll.	ger
college-	coll.	fre, eng
review-	rev.	eng
Zeitschrift für Kristallographie – Crystalline Materials Z. Kristallogr. Cryst. Mater. [Edit]

Z Kristallogr Cryst Mater [Edit]

Z. Krist. – Cryst. Mater. [Create]

Z Krist – Cryst Mater [Create]

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Zeitschrift-	Z.	ger
kristall-	krist.	rus, ger
-graph-	-gr.	eng
crystalli-	cryst.	eng
materia-	mater.	spa, lav, ita
material-	mater.	slo, lit
materials	mater.	eng
matéri-	matér.	fre
Zeitschrift für Kristallographie – New Crystal Structures Z. Kristallogr. NCS [Edit]

Z Kristallogr NCS [Edit]

Z. Krist. – New Cryst. Struct. [Create]

Z Krist – New Cryst Struct [Create]

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Zeitschrift-	Z.	ger
kristall-	krist.	rus, ger
-graph-	-gr.	eng
crystal	cryst.	eng
structur-	struct.	eng, fre