Nope! Currently behaviour looks like the autosave error has simply been bypassed. Add-ons that were added after the error occurred are still not remembering their settings. Also add-ons that have updates pending are simply saying Installed rather than Update via the Options/Add-ons/Browse Add-ons screen. I could try a fresh set of installs but my day job is debugging other people's code and I really don't want to do similar in my free time.
Happy to hear if anyone knows differently.
@MurderologistOnPSN have you tried changing values and checking that they are sticky? Especially on later installed add-ons?
Adding in what I've observed here in the event it's helpful.
I had the autosave error for a while now and was just editing the couple of addons it was impacting at the start of each play session.
Autosave error is gone, and any changes I make to addons that I had installed before the patch are successfully saving (reloaded ui, logged out, and restarted the game and the changes were saved across all of it).
Editing to clarify that my settings are saving for all of the addons I had before the patch, including those that previously were not allowing me to save them because of the autosave error.
Then I downloaded a new addon, specifically TGs Group Trackers. To test if my settings would save, all I changed was the setting "show while solo." The default for that setting is on. I switched it to off; the group tracker did disappear as it was supposed to. Then I reloaded ui--the tracker immediately showed back up, so the setting did not save. Editing a second time to correct myself; I actually didn't reload ui to have the setting revert. I opened the map to try and trigger an autosave (which I did), and that reverted the setting.
What's weirder, though, is when I went to change it back, despite the fact that I could see the tracker, the setting still said that it was set to off.
So based on my experience, the changes not saving situation is only applicable to addons that were installed after U47 was installed, and it fails to save changes made to the addons *immediately.* There also seems to be desync between the settings menu and what the addon is actually doing.