do you have multicore rendering enabled in gmod?
what other addons you have?
gimmi full list

I have around 800 addons (most of them are NPCs or just props)

I think this is the issue:
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Clavicle"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_UpperArm"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Forearm"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Hand"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger4"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger41"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger42"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger3"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger31"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger32"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger2"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger21"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger22"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger1"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger11"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger12"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger0"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger01"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_L_Finger02"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Clavicle"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_UpperArm"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Forearm"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Hand"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger4"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger41"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger42"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger3"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger31"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger32"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger2"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger21"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger22"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger1"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger11"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger12"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger0"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger01"
gmod4phun/c_ins_to_gmod_hands.mdl/weapons/c_arms_animations.mdl : missmatched parent bones on "ValveBiped.Bip01_R_Finger02"

This crap invaded console when i spawned an m9

AAAAAAAAAAAHHHHHHHHHHHHHHHH I'ts the playermodels hands that does it.......

They just don't match with the guns....

@Knife Remember the c_hands to cw weapons you made and never worked? I've checked in the utilities options and realized that if you change the hands to other ones like cs or the insurgency itself the hands will be fixed to the weapon.

If you mean http://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=488078600
I still keep that installed and it does not interfere.

"missmatched parent bones" errors have no effect on viewmodel hands in my game.
Since you didnt answer my questions about settings and complete addon list, all I can advise is to
disable everything that is not required by this addon and to check it out again.

Actually like i said i went to the utilities and realized that i could change the hands, did it and now it doesn't have any kind of problems, only with the playermodel hands. BTW changed to security light hands.

So rig setting #1 is still broken for you and its caused by your subscriptions.
If you happen to correctly identify conflicting addon, dont forget to post link to it either here or into http://psteamcommunity.yuanyoumao.com/workshop/filedetails/discussion/657241323/371918937275676839/