I did already write about the bugs that did concern Litva and Balam systems in the asteroid moons thread. I did also mention the missing moon of 1998WW31 in the same thread, but as you did point out maybe I should mention it in Catalog Fixes thread also.
The following data is not bugs but just wrong numbers concerning various Solar System's minor planets. Hygiea's size is the most obviously wrong but Sedna does also have wrong size and rotation period. Also several Main-belt asteroids have obviously too long rotation periods and their sizes may be a little of, The most obvious size problems I found are for Interamnia, Davida, Europa and Cybele. TNO Chaos does seem to have too small diameter.
Following asteroids have inaccurate properties:
Hygiea - diameter wrong: 862 km /correct: 407 km
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Hygiea
Interamnia - diameter wrong: 181.76 km /correct: 306.313 km
rotation wrong: 7.922 d /correct: 8.727 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Interamnia
Davida - diameter wrong: 132.49 km / correct: 270.327 km
rotation wrong: 9.258 d /correct: 5.1297 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Davida
Cybele - diameter wrong: 106.82 km / correct: 237.26km
rotation wrong: 10.335 d /correct: 6.0814 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Cybele
Europa (asteroid) - diameter wrong: 142.67 km / correct: 303.918 km
rotation wrong: 8.952 d /correct: 5.6304 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Europa
Hebe - diameter wrong?: 167.29 km / correct: 185.18 km
rotation wrong: 8.24 d /correct: 7.2745 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Hebe
Astraea - diameter wrong?: 109.82 km / correct: 106.699 km
rotation wrong: 10.175 d /correct: 16.806 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Astraea
Iris - diameter wrong?: 204 km / correct: 199.83 km
rotation wrong: 7.457 d /correct: 7.139 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Iris
Flora - diameter wrong?: 136.87 km / correct: 147.491 km
rotation wrong: 9.104 d /correct: 12.865 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Flora
Metis (asteroid) - diameter wrong?: 137.19 km / correct: 190 km
rotation wrong: 9.083 d /correct: 5.079 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Metis
Parthenope - diameter wrong?: 124.55 km / correct: 142.887 km
rotation wrong: 9.560 d /correct: 13.7204 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Parthenope
Victoria - diameter wrong?: 80.2 km / correct: 115.087 km
rotation wrong: 11.893 d /correct: 8.6599 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Victoria
Egeria - diameter wrong?: 104.67 km / correct: 222.792 km
rotation wrong: 10.429 d /correct: 7.045 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Egeria
Irene - diameter wrong?: 144.88 km / correct: 152 km
rotation wrong: 8.864 d /correct: 15.028 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Irene
Eunomia - diameter wrong?: 217.17 km / correct: 231.689 km
rotation wrong: 7.255 d /correct: 6.083 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Eunomia
Psyche - diameter wrong?: 166 km / correct?: old estimate 253 – new 196 km
rotation wrong: 8.295 d /correct: 4.196 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Psyche
http://www.occultations.org.nz/planet/2004/results/040516_psyche.htm
Philippina - diameter wrong?: 45.82 km / correct: 50.491 km
rotation wrong: 15.828 d /correct: 5.899 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Philippina
Lutetia - diameter wrong?: 84.73 km / correct: 95.76 km
rotation wrong: 11.571 d /correct: 8.1655 h
(Realistic shape and texture are missing.)
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Lutetia
Following TNO:s have inaccurate properties:
Chaos - diameter wrong: 238.43 km /correct: 600+140−130 km
https://arxiv.org/pdf/1204.0697v1.pdf
Huya – rotation wrong? 13 h / correct? 5.28 h
http://www.johnstonsarchive.net/astro/a ... 38628.html
Sedna – diameter wrong: 1700 km / correct: 995 ± 80 km
rotation wrong: 2.6 d / correct: 10.273 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Sedna
http://adsabs.harvard.edu/abs/2012A&A...541L...6P
Quaoar – diameter wrong? 1250 km / correct: 1073.6 ± 37.9 km
rotation wrong? 17 h/ correct: 8.839 h?
http://www.aanda.org/articles/aa/pdf/2013/07/aa21329-13.pdf
http://www.johnstonsarchive.net/astro/astmoons/am-50000.html
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Quaoar
Varuna – rotation wrong: 3.5 d / correct: 6.3436 h
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Varuna
2010 EK139 – diameter wrong? 414.77 km /correct:? 470+35-10 km
rotation wrong: 5.266 d / correct: 7.07 h
minor planet designation (alternate name) is missing, that is: (471143) 2010 EK139
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=471143
http://adsabs.harvard.edu/abs/2012A&A...541L...6P
Following dual classification objects (minor planet and comet) are missing one or another designation. One is shown with only its minor planet designation, others are displayed with comet designations only (inconsistent data in game). Some of them also have incorrect properties:
Chiron / (2060) Chiron - comet designation is missing, that is: 95P Chiron
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Chiron
http://www.minorplanetcenter.net/iau/li ... tatus.html
Echeclus / 174P Echeclus - diameter wrong: 8.57 km / correct: 59 km
rotation wrong: 16 h /correct: 26.802 h
minor planet designation (alternate name) is missing, that is: (60558) Echeclus
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Echeclus
http://www.minorplanetcenter.net/iau/lists/DualStatus.html
Elst-Pizarro / 133P Elst-Pizarro - diameter wrong: 0.774 km / correct: 3.200 km
pyörähdysaika väärä: 20 h /correct: 3.471 h
minor planet designation (alternate name) is missing, that is: (7968) Elst-Pizarro
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=133P
http://www.minorplanetcenter.net/iau/li ... tatus.html
LINEAR / 176P LINEAR - diameter wrong: 0.763 km / correct: 3.5 km
minor planet designation (alternate name) is missing, that is: (118401) LINEAR
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=176P
http://www.minorplanetcenter.net/iau/li ... tatus.html
Wilson-Harrington / (4015) Wilson-Harrington / 107P Wilson-Harrington – is missing entirely from the game
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=107P
http://www.minorplanetcenter.net/iau/lists/DualStatus.html
Dwarf planets and TNO:s have their minor planet designations (alternate names) shown in the game. Following dwarf planets are missing their minor planet designations (inconsistent data in game):
Pluto - Minor planet designation (alternate name) is missing, that is: (134340) Pluto
https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=Pluto
http://www.minorplanetcenter.net/iau/lists/TNOs.html
http://www.minorplanetcenter.net/dwarf_planets
http://www.minorplanetcenter.net/db_search/show_object?utf8=%E2%9C%93&object_id=134340
http://www.minorplanetcenter.net/iau/mpec/K06/K06R19.html
Pluto's moon Nix seems to be missing realistic shape and texture. Following moons/dwarf moons are missing their satellite designations (inconsistent data in game):
Galilean moons of Jupiter
Dysnomia of Eris
Moons of Pluto
Moons of Mars
Some interesting objects are missing from game, and so are realistic textures and shapes of minor planets and Pluto's dwarf moons visited by space crafts should they be discussed in the Catalog Fixes thread?