Thanks for the link to the plugin. That does help. I’ve installed it and have not yet been able to replicate the error But I’ve only begun to dig in.
There is nothing unstable about your site in regards to the update. There would be nothing to gain by restoring the home directory and db. If you want to roll back your site to 8.2.10, you can do that safely by deactivating and deleting Connections and then manually reinstall 8.2.10. Here’s the link to the zip file.
Now that I know the plugin conflict and where the error is, after I am able to duplicate it, I should be able to fix it.
Before you roll back Connections to 8.2.10, can you please paste the system info into a text file along with an export of the Connections settings? Both can be found on the Connections Tools admin page.
Attach these as text files to a private reply. Thanks!