The lady who lost money on the software error probably went and jumped in front of a train.
The cops would have picked up the pieces of what was left of her and put them in a black bin bag.
That's how life is.
I can't imagine IG wants to cheat anyone, but I can see a possibility of the web platform causing issues that cause people to lose money. If I ever trade big money I would certainly take screen shots, write down the details in a little notebook lol.