Oh, good catch. Should be an easy fix.
The code has been updated.
The Pyroclastic wing should now only roll for 1 ship when braving a hazard.
I also fixed the UCR appendix bug you reported.

I tried out the new Dominion set and ran into a similar issue; the Science Fleet shows it should only roll for one ship though it rolls for all ships. I tested and if there are multiple failed Hazards braved then it will destroy multiple ships. I also tried to pick up the Bajor Wormhole token after discovering Bajor but they seemed to be stuck in place; maybe I have something locked on my end in controls... I also wasn't able to trigger Victory by using the Dominion Alliance Panel, tested in 2 player, 3 player, and 7, and it didn't seem like ships were self-destructing during the maintenance phase from Ketracel White withdrawals, though I figure that may also be because that would be a huge pain to program into the game.

I promise I'm not trying to find issues, I just can't stop playing and was excited to see the Dominion as an option and give them a shot! The visuals for the faction are great and moving the Great Link worked well and tallied resources successfully in the new nodes. All the core mechanics seemed to work for them and the Vorta Facilitators triggered right in the instances I played. None of these few bugs are breaking the game and I don't think anything's going to keep me from playing more, but figure I'd let you know. Thanks again for all the effort put into this!

I should have put a note that the Dominion is not fully functional yet. I really appreciate you reporting these issues. There are so many things to consider, and testing has been very time consuming. I have yet not coded the Fleets, Dominion Victory, nor Ketracel White. I do intend for them all to work automatically. Ketracel White would be a huge pain, but scanning for first contact, and the Vulcan Monasteries code already works, so it shouldn't be hard to adapt it to detecting Warp distances for Ketracel.
I can quickly fix the Dominion Science Fleet. The Dominion Victory condition is close to being done. Ketracel White will take a bit longer.