I found this error, no idea what it means or why it happens:
WARNING: ...-Addons/Tag/Characters/CL_Maimy-v1.6.pk3|Lua/LUA_HUG:242: accessed mobj_t doesn't exist anymore, please check 'valid' before using mobj_t.
stack traceback:
[C]: ?
...-Addons/Tag/Characters/CL_Maimy-v1.6.pk3|Lua/LUA_HUG:242: in function <...-Addons/Tag/Characters/CL_Maimy-v1.6.pk3|Lua/LUA_HUG:239>