Dream Theater

In my digital download email, I saw this about the Box Set being delayed:
Are they saying there is an issue with the sound of the CD? the LPs? Something else entirely?

REGARDING THE PHYSICAL ALBUM!
A message directly from Roadrunner:
Due to a manufacturing issue, the Dream Theater A Dramatic Turn Of
Eve! nts deluxe box sets have been slightly delayed. This was a quality
issue and Dream Theater, Roadrunner Records, and The Omega Order want
to ensure the best possible audio experience for the new album to its
fans. The product will arrive to our warehouses later this week and
we will start shipping all orders upon arrival. We apologize for the
delay, but would not want to provide an inferior product in its place.
Your download code for A Dramatic Turn Of Events is below so you can
enjoy the album in its entirety a day before it’s released to retail.
We apologize for the inconvenience, and will have your physical order
out to you as soon as possible.
Please know that we have all the boxes made and postage ready.
We are prepared to ship these out the second they get to our warehouse.
Thank you so much!