Hello
i ve recently found a new problem with my save , it writes me this:

Loading dungeon The Guardians by Adrageron
=== Software Failure ===

[string "MessageSystem.lua"]:0: could not resolve object reference with id rope_1
stack traceback:
[C]: in function 'assert'
[string "MessageSystem.lua"]: in function 'loadState'
[string "GameMode.lua"]: in function 'loadGame'
[string "GameMode.lua"]: in function 'update'
[string "Grimrock.lua"]: in function 'display'
[string "Grimrock.lua"]: in main chunk

i dont know what to do , iam totaly desperate , cause last save that does work is like 3 hours of playtime before this one :/ could you help me please ?