These were all the differences between the valid and invalid debug logs. Obviously LUAchecksums were different. At first it would appear that the mod library tsarslib is the culprit but it's not entirely clear as mods that don't use tsarslib also cause the same gave version issue, I just so happened to add a mod that interacted with tsarslib. I should probably take a look at a situation where the added mod does not interact with tsarslib (intentionally).
Of note is item 1 not being present in the invalid server instance, I'm not sure if that's significant.
Also, the number of workshop items is 63 for the valid and 65 for the invalid, not sure if maybe that is a part of the issue. maybe there is an issue with the count of workshop/mods? I find it ironic that 65 (41.65) is the number of mods where I run into issues.
valid
[23-12-21 15:57:42.346] LOG : Mod , 1640303862346> 90,969,702> mod "tsarslib" overrides preview.png.
Absent (these mods are not loaded in the valid version as the addition of any mod makes it invalid)
[23-12-21 15:57:47.356] LOG : General , 1640303867356> 90,974,708> LOADING ASSETS: START.
[23-12-21 15:57:55.643] LOG : General , 1640303875643> 90,982,999> LOADING ASSETS: FINISH.
Doesn't contain the following lines (note these mods aren't included in the valid version): [23-12-21 15:55:06.619], [23-12-21 15:55:06.621]
Absent (this mod is not included as any additional mod invalidates game version)
invalid
absent
loading TMC_TrueActions.
[23-12-21 15:54:48.059] LOG : Mod , 1640303688059> 90,795,406> mod "TMC_TrueActions" overrides changelog.txt.
[23-12-21 15:54:48.063] LOG : Mod , 1640303688063> 90,795,409> mod "TMC_TrueActions" overrides media/lua/shared/translate/en/contextmenu_en.txt.
[23-12-21 15:54:48.063] LOG : Mod , 1640303688063> 90,795,409> mod "TMC_TrueActions" overrides media/lua/shared/translate/en/ig_ui_en.txt.
[23-12-21 15:54:48.063] LOG : Mod , 1640303688063> 90,795,409> mod "TMC_TrueActions" overrides media/lua/shared/translate/es/contextmenu_es.txt.
[23-12-21 15:54:48.063] LOG : Mod , 1640303688063> 90,795,410> mod "TMC_TrueActions" overrides media/lua/shared/translate/es/ig_ui_es.txt.
[23-12-21 15:54:48.064] LOG : Mod , 1640303688064> 90,795,410> mod "TMC_TrueActions" overrides media/lua/shared/translate/fr/contextmenu_fr.txt.
[23-12-21 15:54:48.064] LOG : Mod , 1640303688064> 90,795,410> mod "TMC_TrueActions" overrides media/lua/shared/translate/fr/ig_ui_fr.txt.
[23-12-21 15:54:48.065] LOG : Mod , 1640303688064> 90,795,411> mod "TMC_TrueActions" overrides media/lua/shared/translate/ru/contextmenu_ru.txt.
[23-12-21 15:54:48.065] LOG : Mod , 1640303688065> 90,795,411> mod "TMC_TrueActions" overrides media/lua/shared/translate/ru/ig_ui_ru.txt.
[23-12-21 15:54:48.065] LOG : Mod , 1640303688065> 90,795,412> mod "TMC_TrueActions" overrides preview.png.
[23-12-21 15:54:48.066] LOG : Mod , 1640303688065> 90,795,412> loading TrueActionsDancing.
[23-12-21 15:54:48.086] LOG : Mod , 1640303688086> 90,795,432> mod "TrueActionsDancing" overrides changelog.txt.
[23-12-21 15:54:48.089] LOG : Mod , 1640303688089> 90,795,436> mod "TrueActionsDancing" overrides media/animsets/player/emote/looped.xml.
[23-12-21 15:54:48.093] LOG : Mod , 1640303688093> 90,795,439> mod "TrueActionsDancing" overrides media/lua/shared/translate/en/ig_ui_en.txt.
[23-12-21 15:54:48.093] LOG : Mod , 1640303688093> 90,795,439> mod "TrueActionsDancing" overrides media/lua/shared/translate/en/itemname_en.txt.
[23-12-21 15:54:48.093] LOG : Mod , 1640303688093> 90,795,440> mod "TrueActionsDancing" overrides media/lua/shared/translate/en/recipes_en.txt.
[23-12-21 15:54:48.094] LOG : Mod , 1640303688093> 90,795,440> mod "TrueActionsDancing" overrides media/lua/shared/translate/en/tooltip_en.txt.
[23-12-21 15:54:48.094] LOG : Mod , 1640303688094> 90,795,440> mod "TrueActionsDancing" overrides media/lua/shared/translate/fr/ig_ui_fr.txt.
[23-12-21 15:54:48.094] LOG : Mod , 1640303688094> 90,795,440> mod "TrueActionsDancing" overrides media/lua/shared/translate/fr/itemname_fr.txt.
[23-12-21 15:54:48.094] LOG : Mod , 1640303688094> 90,795,440> mod "TrueActionsDancing" overrides media/lua/shared/translate/fr/recipes_fr.txt.
[23-12-21 15:54:48.094] LOG : Mod , 1640303688094> 90,795,441> mod "TrueActionsDancing" overrides media/lua/shared/translate/fr/tooltip_fr.txt.
[23-12-21 15:54:48.095] LOG : Mod , 1640303688095> 90,795,441> mod "TrueActionsDancing" overrides media/lua/shared/translate/ru/ig_ui_ru.txt.
[23-12-21 15:54:48.095] LOG : Mod , 1640303688095> 90,795,441> mod "TrueActionsDancing" overrides media/lua/shared/translate/ru/itemname_ru.txt.
[23-12-21 15:54:48.095] LOG : Mod , 1640303688095> 90,795,441> mod "TrueActionsDancing" overrides media/lua/shared/translate/ru/recipes_ru.txt.
[23-12-21 15:54:48.095] LOG : Mod , 1640303688095> 90,795,442> mod "TrueActionsDancing" overrides media/lua/shared/translate/ru/tooltip_ru.txt.
[23-12-21 15:54:48.107] LOG : Mod , 1640303688107> 90,795,453> mod "TrueActionsDancing" overrides preview.png.
[23-12-21 15:54:53.227] LOG : General , 1640303693227> 90,800,573> LOADING ASSETS: START.
[23-12-21 15:55:01.722] ERROR: General , 1640303701722> 90,809,068> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.726] ERROR: General , 1640303701725> 90,809,071> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.729] ERROR: General , 1640303701729> 90,809,074> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.743] ERROR: General , 1640303701743> 90,809,089> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.759] ERROR: General , 1640303701758> 90,809,104> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.759] ERROR: General , 1640303701759> 90,809,105> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.765] ERROR: General , 1640303701765> 90,809,111> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.782] ERROR: General , 1640303701782> 90,809,128> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.789] ERROR: General , 1640303701789> 90,809,134> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.794] ERROR: General , 1640303701794> 90,809,140> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.794] ERROR: General , 1640303701794> 90,809,140> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.817] ERROR: General , 1640303701817> 90,809,163> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.817] ERROR: General , 1640303701817> 90,809,163> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.821] ERROR: General , 1640303701821> 90,809,167> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.831] ERROR: General , 1640303701831> 90,809,176> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.849] ERROR: General , 1640303701849> 90,809,195> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.851] ERROR: General , 1640303701851> 90,809,197> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.851] ERROR: General , 1640303701851> 90,809,197> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.855] ERROR: General , 1640303701855> 90,809,200> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:01.883] ERROR: General , 1640303701883> 90,809,229> ImportedSkeleton.collectBoneFrames> Could not find bone index for node name: "Body".
[23-12-21 15:55:03.903] LOG : General , 1640303703903> 90,811,248> LOADING ASSETS: FINISH.
function: M998itemDistro.lua -- file: M998itemDistro.lua line # 3.
[23-12-21 15:55:06.604] LOG : Lua , 1640303706603> 90,813,949> Loading: steamapps/workshop/content/108600/2689588894/mods/MilPonchoFixed/media/lua/server/Items/MPoncho_Distributions.lua.
[23-12-21 15:55:06.605] LOG : Lua , 1640303706605> 90,813,951> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Items/MREz_Distribution.lua.
[23-12-21 15:55:06.606] LOG : Lua , 1640303706606> 90,813,952> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Items/MilitaryCanteensAndFlashlightsDistributions.lua.
[23-12-21 15:55:06.608] LOG : Lua , 1640303706608> 90,813,954> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Items/MoreCivilianVests_Distributions.lua.
[23-12-21 15:55:06.612] LOG : Lua , 1640303706612> 90,813,958> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Items/P38_distribution.lua.
[23-12-21 15:55:06.614] LOG : Lua , 1640303706614> 90,813,960> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Items/PLGR_Distributions.lua.
[23-12-21 15:55:06.616] LOG : Lua , 1640303706615> 90,813,961> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Items/SAK_distribution.lua.
[23-12-21 15:55:06.617] LOG : Lua , 1640303706617> 90,813,963> Loading: steamapps/workshop/content/108600/2684285534/mods/Spongie Clothing/media/lua/server/Items/SpongieClothingLootDistributions.lua.
[23-12-21 15:55:06.619] LOG : Lua , 1640303706619> 90,813,964> Loading: steamapps/workshop/content/108600/2648779556/mods/TrueActions_Dancing/media/lua/server/Items/TADItemDistributions.lua.
[23-12-21 15:55:06.621] LOG : Lua , 1640303706621> 90,813,967> Loading: steamapps/workshop/content/108600/2648779556/mods/TrueActions_Dancing/media/lua/server/Items/TADKosmoItemDistributions.lua.
[23-12-21 15:55:06.622] LOG : Lua , 1640303706622> 90,813,968> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Items/VestsWithPockets_Distribution.lua.
[23-12-21 15:55:06.623] LOG : Lua , 1640303706623> 90,813,969> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Items/ZZ_BackpackAttachments_Special.lua.
[23-12-21 15:55:06.624] LOG : Lua , 1640303706624> 90,813,970> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Items/Z_Other_Mod_Bags_Distribution_2.lua.
[23-12-21 15:55:06.626] LOG : Lua , 1640303706625> 90,813,971> Loading: steamapps/workshop/content/108600/2690282174/mods/Ken's Herbalism/media/lua/server/KapMedEffects.lua.
[23-12-21 15:55:06.627] LOG : Lua , 1640303706627> 90,813,973> Loading: steamapps/workshop/content/108600/2690282174/mods/Ken's Herbalism/media/lua/server/KapMedEffects_2.lua.
[23-12-21 15:55:06.628] LOG : Lua , 1640303706628> 90,813,973> Loading: steamapps/workshop/content/108600/2050264961/mods/ADVANCED G.E.A.R/media/lua/server/Loading.lua.
[23-12-21 15:55:06.628] LOG : Lua , 1640303706628> 90,813,974> Loading: steamapps/workshop/content/108600/2642541073/mods/92amgeneralM998/media/lua/server/M998vehicle.lua.
[23-12-21 15:55:06.629] LOG : General , 1640303706629> 90,813,975> -------------------------------------------------------------
attempted index: createVehicleConfig of non-table: null.
[23-12-21 15:55:06.648] LOG : Lua , 1640303706647> 90,813,993> Loading: steamapps/workshop/content/108600/2487022075/mods/TrueActions/media/lua/server/TrueActionsServer.lua.
[23-12-21 15:55:19.215] LOG : Lua , 1640303719215> 90,826,560> Loading: steamapps/workshop/content/108600/2648779556/mods/TrueActions_Dancing/media/lua/server/recipecode_tad.lua.