msprange said:
Which is why we release the PDF before we send the book to print

We have a veritable battery of Traveller experts picking apart each book, but nothing beats a whole bunch of players!
So it's a beta release, basically? People who just want to use a book that works should wait a few months while the bugs are picked out?
(speaking of which, you REALLY need to update the PDF for 2300AD's "Atlas of the French Arm" on DTRPG. The printed version has the types fixed, but the PDF is still wrong).