I also had no problem opening/reading it.
You can be quite sure that the supply chain problems have also had a negative effect on the profitability of other makers. All are pretty much in the same boat, as is evident from slipped shipping schedules for nearly all of them.
This, of course, leads to increased dealer and consumer frustration and uncertainty, and that takes a long time to mitigate and/or overcome. Not a terribly good situation for anyone.
The best advice I can give to consumers is just to continue to be as patient as possible and to budget anticipated hobby expenses to account for the somewhat inevitable delays. Most all of us have more than enough trains to "play" with already, so it's just a matter of dealing with these things as best we can, or making alternative arrangements for the use of whatever discretionary income you may have available or planned for.