That's interesting that you've seen the bridesmaid's dress itself, @JADS ... wish I'd had that opportunity!
I just don't buy the cock-up scenario - not on something this high profile and with their reputation at stake - and can hardly think Meghan would sabotage her own wedding, so all that seems to be left is a monumental fall-out whereby they could no longer work together, and at a stage where it was too late to source anything else
As so often though we'll never know since the company won't blab. Probably some on the industry know, but so far at least they're keeping schtum too