Even if I don't frequent a particular piece of software's support forums, I do make it a point to get the lay of the land before applying any major updates (3 to 4, 4 to 5, etc...). Saves a lot of trouble in the long run. Especially when 3rd-party extensions are in play.
The downside of having this conversation in this particular thread is that each new post has the unfortunate side-effect of causing people who know there's an issue with this plugin (RE calibre 5) to hope there's been a new release of the plugin to address it. This is, afterall, the "There's a new version of the plugin" announcement thread and not the "There's NOT a new version of the plugin" announcement thread.
