Status update: Well it's been one of those weeks. Obviously it was a rougher launch than we'd intended, for a variety of reasons. The good news that over the last eight days we've squashed almost a hundred bugs, ranging from the catastrophic to the annoying. We have a ways to go but the Mercury issue queue is looking a lot neater than it was a couple days ago. Eight significant bugs remain, but we won't be stopping there. Expect lots of performance and usability improvements over the next week. If you have an issue that is not already the queue, please fill out the support request form or email firstname.lastname@example.org.
Drupal 9+ Mercury Reader users: Eric Neville solved some issues with the reader module. Grab 2.13 asap (Composer should pick it up).
Drupal 7 Mercury Reader users: Michael Sheldon was kind enough to patch a number of issues with the Drupal 7 version of Mercury Reader which caused it to be unhappy with the new system. The new version is available here: https://github.gatech.edu/ICWebTeam/hg_reader-7.x/releases/tag/v2.20