Replace or clean stained carpet after mold issues?
If it's coming back through, it's not dry underneath. Aside from who is going to be paying for it, builder or insurance, you need to get that up, test the floor underneath for damp &amp; then, depending on result, get the builder back in or see if a dehumidifier can get it dry. I wouldn't lay any new flooring until you can assess the damp below and I wouldn't dream of putting that back down again.