The recent release of Picard v2.9 included some changes to the MusicBrainz API helper code which seems to have broken the “Submit ISRC” and “Submit Folksonomy Tags” plugins. The plugins still look like they are working, but when the information is being sent to MusicBrainz the transfer fails with no obvious indication to the user.
I have updated both plugins so that they work with the new version of Picard but are still backward compatible with the previous version. The updates are available on the Picard Plugins website, and should be available through the plugins page of the option settings in Picard. If you use either of these plugins, please update them as soon as you can.
It has long bothered me that you had to go to the plugins page in the option settings to check if an update was available, because I rarely change option settings now that I have things working pretty much as I like. It was only by accident that I noticed the Submit ISRC plugin wasn’t working. To avoid missing that a plugin update is available, I have submitted a small code change to have Picard check if updates are available for your installed plugins when the program is started and pop up an information dialog to let the user know. I’ve also added a new option setting to allow the user to enable/disable this check. This is still being reviewed so I don’t know when it will be available, although we’re targetting Picard v3.0. If you want to track the progress or vote for it, I suggest that you watch the ticket.