Only thing I changed was the credits and got multiple corrupted saves.
I'll just wait for the new version, I'm not going to bother to hex edit since I have no clue on what I''m doing lol, and don't suggest Idlehands88's hexing tut, it isn't detailed enough for me lol I need more than "click this" "open that" "change this" and "save this" when dealing with something like a hex editor I need every thing to be very detailed. This editor is simpler and I'm following everything as typed but like many others I'm still having problems with it.

I used this editor and when i went to load the save it gave me a corrupt file message but when it asked do i want to continue or delete corrupt file I just clicked continue and it worked just fine for me took a couple mins to load but went anyway and all my changes worked.
Wow! already an editor, this is awesome!

Just a thought. Does the version of the ME3 copy make a difference? Meaning that if the editor was created based off the regular version/collectors edition, would that have some affect on people using a different copy maybe? Since some ppl claim it's working and most others are saying it corrupts.
"Even a broken clock tells time twice a day."
Hex editing is simple... if you are modding anything i suggest learning how to hex edit or you will get no where without someone having to steer you through the process... Idle's tutorial is very helpful/detailed but it doesn't seem like that to you cause you simply don't understand what he is talking about in his tutorial.