Stupid ''WASD cheat'' bug!!!

So i was driving a bike at Bone County and game said ''Cheat activated'' suddenly without a reason and it changed the weather into the ''verry sunny'' i guess. When i went to a safehouse for saving game showed me a warning again that i have an active cheat so better not save.

First of all, i am trying to do %100 completion and just have finished toreno's ''monster'' mission. (I also have done some side missions) so i didn't want to lose my all progress and saved my game.

When i searched on google i've learned that, problem is called ''WASD cheat'' A strange coding bug which considers you as a cheater even though you are not. I looked for the solution but couldn't find anything.

İ tried to reset the game, typed same cheat to deactivate it, used a program called GTASAsaveeditor (program didn't run for some reason) but nothing has solved my problem...

Is there any solution to get rid of this and continue to my progress or am i totally screwed and will be lose all my save because of a f****ing bug?