What happened to the hardcopy vol 1 book?

Hi Roberto, please note the disclaimer at the bottom of the product page, also shown below:

PLEASE BE ADVISED: At times the print on demand books will need to be updated and may be temporarily withdrawn from the product range. This process can take a few months to complete, and will become available as soon as the update is complete. We are sorry for any inconvenience this may cause.

The reason for the update is better explained in a Facebook post I made, also shown below:

Hi everyone, there are no rule changes. All books from previous versions are still valid and current. It’s purely a cosmetic upgrade. I have switched to new publishing software at the request of drivethrurpg as of book 7 and the d100 space books and so all previous supplements needed to be brought forward into the new format. The print on demand books needed to be compliant with the printers they use and so this was a necessity rather than a choice. I decided the two column approach to be more in keeping with rpg books and added more images whilst either manipulating black and white art or dropping them completely. I am quite pleased with the updated result and hope the new layout is well received. If you own the older format books, I have made sure they are not superseded by the updated ones, so there is no need or no one is forced into upgrading. My goal with D100 Dungeon and D100 Space is to not force players to keep buying updated revisions of the same books.

Sorry for any inconvenience. I will be uploading the updated files today and so we are looking at around 2-3 weeks for me to receive proof copies and get them approved for sale.